SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
The Top Tier of AMSOIL Synthetic Motor Oil. AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.
Product Code: ALM •
Brand: AMSOIL
Product Details
Tech Data
Reviews & RatingRelated Videos
Product Applications Product Application Specs • API SP (Resource Conserving), SN PLUS, SN
Product Description
Protects Against Engine Wear *Based on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification.
Protects Pistons from Low-Speed Pre-Ignition (LSPI)
Protects Turbochargers
Extends Drains: Protection Guaranteed Trusted by Professional Engine BuildersDedicated engine builders and mechanics put in long hours honing their craft. These architects of powerful, high-performance engines turn to Signature Series to protect their passion."When we use AMSOIL, I don't worry about a film breakdown or an oil breakdown - and the oil pressure is always consistent. We've tested oils back-to-back on the dyno in our shop and we're always able to make more power with AMSOIL." -Brett Bowers, Engine Masters Competitor and Professional Engine Builder Maximum Cleaning Power to Battle SludgeAMSOIL Signature Series Synthetic Motor Oil has 50 percent more detergents* to help keep oil passages clean and promote oil circulation.Engine failures due to sludge are often caused by a plugged oil pick-up tube screen - the motor is effectively starved of oil. The Sequence VG Engine Test measures an oil's ability to prevent sludge. During the test, a Ford 4.6L engine is subjected to sludge-inducing conditions for 216 hours. The industry standard allows for 10 percent blockage before the motor oil fails the test. Signature Series produced a screen virtually free from sludge (see image). Its detergent and dispersant additives are so effective, Signature Series provides 90 percent better protection against sludge. • *Based on independent testing of AMSOIL Signature Series 5w-30 motor oil, in the LSPI engine test as required for the GM dexos 1® Gen 2 specification. • *Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test. • *vs. AMSOIL OE Motor Oil • *Based on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil screen plugging as required by the API SN specification. * All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.
Preserves Horsepower
Limits Oil Consumption
Easier Cold-Starts
Maintains Protective Viscosity • *Based on proposed ILSAC GF-5 Plus specification.
SERVICE LIFE COMPATIBILITYAMSOIL Signature Series Synthetic Motor Oil is compatiblewith other conventional and synthetic motor oils. Mixing other oils with AMSOIL motor oils, however, will shorten the oil’s life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils. HEALTH & SAFETY Click here to view the MSDS Data Sheet for AMSOIL ALM. Keep out of the reach of children. Don't pollute. Return used oil to collection centers.
LSPI Super Knock PreventionSequence IIIG Engine Test + Motor Oil ComparisonCold Flow Pour Test AMSOIL vs Conventional Motor OilReviewed by Theodore: I will buy again.Great product, worth the cost. Item Reviewed: Signature Series Motor Oils
Reviewed by Steven: Worth the money!Great product! I use and highly recommend the signature series in my daily and my fun car! Noticeable improvement on acceleration and much cleaner and quieter engine operation! Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: Motor oil.Very pleased Item Reviewed: Signature Series Motor Oils
Reviewed by Ken: I have used email for the last 10 years.Just what my Shelby GT350 needed.😁 Item Reviewed: Signature Series Motor Oils
Reviewed by Larry: I will continue buying this oil.I use this oil in a turbo BMW as it is called for this weight. Since I like other weight oils from Amzoil, I use this in the BMW. Item Reviewed: Signature Series Motor Oils
Reviewed by Matthew: I use even oil change.Used in my 2007 Ford F-150 with 220,000 miles. Item Reviewed: Signature Series Motor Oils
Reviewed by Howard: Amsoil keeps your vehicles going and going.I have been using this this in all my vehicles since 1992. In my new cars I change to Amsoil at the first oil change. when I retired from Work Jan 2012 I was driving a Dodge Neon, 4 cyl standard shift. I drove 98 miles round trip every time I went to work. Used this Amaoil and also put Amsoil in the manual transmission. I had 160,00 miles on it when he flew to Fla from Pa to pick it up. He is still driving it. Drives up the Pa turnpike every day. He turned over 300,000 miles on it about 5 months ago. Still has the original clutch. Item Reviewed: Signature Series Motor Oils
Reviewed by Eric: Amazing oilGreat stuff!! The fact that I can pair this and an Ea filter to go to 15k every change is awesome. I would and do recommend this to friends and family for its outstanding performace and reliability. Item Reviewed: Signature Series Motor Oils
Reviewed by Dan: Awesome OilGreat product, use it exclusively in all my LS motors. Many of them to date have exceeded 300,000 miles Item Reviewed: Signature Series Motor Oils
Reviewed by Dan: Great OilGreat Oil, use it in all my LS motors. Many of them have exceeded 300,000 miles already Item Reviewed: Signature Series Motor Oils
Reviewed by Dan: I would buy and use this product again...The best motor oil so far that I've used for my 2014 Honda Odyssey. The mini van runs great, engine been quite and saved on gas mileages...awesome! Item Reviewed: Signature Series Motor Oils
Reviewed by Tim: Good oil.Good oil. Use it in my 2015 Chevrolet Silverado 2500 HD with the 6.0L V-8 and 2004 Pontiac Grand Prix GT with the 3.8L V-6. Item Reviewed: Signature Series Motor Oils
Reviewed by Lewis: Great oil for my vehicle engine, also OEM specGreat oil for my vehicle engine, also OEM spec. Item Reviewed: Signature Series Motor Oils
Reviewed by Richard: don't listen to hype of others go Amsoil.Being the only one driving the car and rarely having someone inside as a passenger you get the feel of your car. In 2008 I bought a Pontiac Grand Prix and I went to a convention in Dallas. There was an amsoil booth there and I checked it out. I did end up spending way more money than I thought I was going to. Once I put the oil into my car and I drove to work the next day I definitely felt a whole different thing going on. It was like a smoother ride just because I guess LOL I know the engine was working smoother because of amsoil oil. if you have a car that will monitor your oil and suggest when you should change it you will notice that it will go longer with amsoil I didn't have a car for 5 years because I was out of the country but once I came back and I got another car, the first thing I did was order amsoil oil and change the oil in this car. it's not expensive you break down the cost of your engine problems it's always comes out cheaper to have amsoil oil in your engine. I am definitely one of those people if something doesn't work I'm not going to use it and I will tell people don't use it. Item Reviewed: Signature Series Motor Oils
Reviewed by Steven: Buy it again, over and over and over for more than a decadeIs there something proven better to use? I researched before first purchasing this oil for nearly 13 years in the same 2002 Ford F150. Use the Amsoil filter to trap more contaminants that occur over time as well. The vehicle has less than 29Kmi on the odometer. My most recent oil change had less than 850 miles over a 13 month period. Item Reviewed: Signature Series Motor Oils
Reviewed by Scott: The Best Oil for your Car!The perfect oil for my 2019 Chevrolet cruze. Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: I hit the jackpotI won't use any other oil Item Reviewed: Signature Series Motor Oils
Reviewed by Patrick: I plan to continue using this product.The best motor oil money can buy! Item Reviewed: Signature Series Motor Oils
Reviewed by Scott: I only use amsoilI only use amsoil for my vehicles. 13 years and 250,000 miles later still running smooth. Thank you Item Reviewed: Signature Series Motor Oils
Reviewed by William: Still the quality I rememberHaving been a user of AMSOIL products since the early 1970s I am pleased to say I recently switched over my 2003 Toyota Tacoma with 253,000 miles on it and my 2006 Toyota 4Runner with 168,000 miles on it. After almost three months since I changed the oil there have been no oil leaks or excess using of oil and the engines run just fine. Item Reviewed: Signature Series Motor Oils
Reviewed by James: YesLower friction less emisions better gas mileage mostly to keep the envestment like new Item Reviewed: Signature Series Motor Oils
Reviewed by Brandon: Well worth the moneyI have been using this oil for a few years in my vehicles and am completely satisfied with it's performance. I get a lot more miles between oil changes and it looks almost as clean coming out as it did going in, not all black and nasty like conventional oils. I always use the Amsoil oil filter as well which helps keep the oil filtered and in good condition. Item Reviewed: Signature Series Motor Oils
Reviewed by Andrew: I buy this oil ....by the case.A Great Product! Item Reviewed: Signature Series Motor Oils
Reviewed by Oleh: Not recommendetGood only for 10 000 km Item Reviewed: Signature Series Motor Oils
Reviewed by Forrest: GXP using Amsoil synthetic oilI use this oil in a Pontiac Bonneville GXP with the Cadillac North Star engine. The car has about 80K miles and uses about one quart in about 7k miles Item Reviewed: Signature Series Motor Oils
Reviewed by Merlin: 0il testamonyBeen using Amzoil since 1977. Presently have a 2009 Camry Hybrid with 197K miles. Runs great--averages about 40mpg on highway and no oil consumption. Great oil!!! Item Reviewed: Signature Series Motor Oils
Reviewed by Philip: yesI've used this product and love. I have Amsoil in all od my units Item Reviewed: Signature Series Motor Oils
Reviewed by Dan: 5-20 for 19 ram 5.7 hemi19 ram 5.7 hemI , bought 2 1gal cases so I'm set for a while. I use amsoil in my 08 Z06, 14 glk250 11 A3 and now the 19 ram.So whether it's a turbo blower or nat.aspirated they are the best. Item Reviewed: Signature Series Motor Oils
Reviewed by Roy: Better gas mileage and longer time on oil changesThe best motor oil you can by hands down. Check out the oil analysis on-line. I went 19k miles on my Prius and oil analysis said that I could go on up to 22k without any issues. This was and independent oil lab. Item Reviewed: Signature Series Motor Oils
Reviewed by Bob: all I use is amsAms oil is the finest oil and thats all I use and try to tell everyone. Better pressure cold and hot! Item Reviewed: Signature Series Motor Oils
Reviewed by Sam: Amsoil the top rated oil by experts who know!Been "my own" mechanic and all about repairman all my life. Did much of my own maintenance and repair work on mine ... and families automobiles for years. Since being disabled in 2008 with medical conditions that limit me now to very little physical work, I looked for the best lubrication I could find. After much research and even with help from qualified "lubrication expert chemical engineer" I knew from my work days , I confirmed there is no better quality lubrication than Amsoil products. I use the Amsoil motor oil for two reasons. #1 It is the best motor oil on the planet - hands down with intense research to verify. #2 I use it because in my physical condition and being unable to change my own oil like I used to , I use the Amsoil because of its long lasting quality that allows me to confidently go with long intervals between changes. Item Reviewed: Signature Series Motor Oils
Reviewed by David: Best on the market.I use the signature series on both my cars and one is a 1999 volvo s80 and still running great. Item Reviewed: Signature Series Motor Oils
Reviewed by John: Save money and time do it once a year or 25,000 milesI changed my 2014 Infiniti QX60 over to 100% AMSOIL products. I won't look back. Item Reviewed: Signature Series Motor Oils
Reviewed by Ricardo: AwesomeGreat oil, would not change for a different brand. Item Reviewed: Signature Series Motor Oils
Reviewed by Gary: Never Use Anything ElseBeen using Amsoil Signature Oil for over 10 yeas. From the purchase process to the application and performance...Amsoil is 1st Class! Item Reviewed: Signature Series Motor Oils
Reviewed by Jeremy: I would buy this product agianuse this oil in my wifes 2014 dodge charger 3.6 great oil Item Reviewed: Signature Series Motor Oils
Reviewed by Eric: Saves time and money. less to recycle!Love the extended change. 100000 so far on the car and the engine runs perfect does not use a drop of oil. Item Reviewed: Signature Series Motor Oils
Reviewed by ELIS: Best synthetic oil, period!I have tried many products in my lifetime trying to protect my investments from friction damage. I purchased a new 2002 1500 Chevy Suburban LS with a 5.3 liter engine and tow package. Was using a competitors synthetic oil and was very satisfied with the product. All the ticks and clicks that bother me were gone and the smooth running engine was great. The problem with the oil was that it was hard to come by locally and when it could be found it was very expensive and the wrong viscosity. I had to resort to ordering on line in five gallon containers and found that the oil was burning off about one quart every 15,000 miles due to heat. Specs. on the product indicated it could handle the heat but apparently it could not. Item Reviewed: Signature Series Motor Oils
Reviewed by James: DO NOT KNOW PRICE IS THE PROBLEM.GOOD PRODUCT BUT GETTING TOO HIGH PRICED. Item Reviewed: Signature Series Motor Oils
Reviewed by Rick: ForsureAs advertised fast home delivery Item Reviewed: Signature Series Motor Oils
Reviewed by Mike: I would buy again n again.Toyota Tundra 2016 engine warm up not too much engine vibration when driving it very smooth ride! Item Reviewed: Signature Series Motor Oils
Reviewed by Lloyd: been using it for 10 years.Used on my 2008 Toyota Tundra, great product and smooth running, motor runs quiet and cooler... Excellent. Item Reviewed: Signature Series Motor Oils
Reviewed by Michael: You HAVE to buy AmsoilGreat product! I use it in my 2014 Jeep Grand Cherokee with 92,000 + miles and it runs better than when it was new. Using the Signature XL 05W20 (6-quarts). I have 6000+ miles with ZERO oil consumption and it runs glass smooth. I LOVE all Amsoil Products!! Item Reviewed: Signature Series Motor Oils
Reviewed by Danny: I will buy this again next yearUse this oil for my 2018 camaro! Item Reviewed: Signature Series Motor Oils
Reviewed by Albert: Been using for decades!Been using Amsoil for YEARS. All my cars have gone over 200,000mi and NEVER used a drop of oil!!! Item Reviewed: Signature Series Motor Oils
Reviewed by Arthur: Lowered Temperature on a Supercharged truck!Awesome product ! Decreased the engine temperature by 12-15 degrees! Will ALWAYS purchase this oil for my supercharged truck! Item Reviewed: Signature Series Motor Oils
Reviewed by Hugo: I woul buy this products againThanks Quick delivery Item Reviewed: Signature Series Motor Oils
Reviewed by Mike: YesYou're product s are great Item Reviewed: Signature Series Motor Oils
Reviewed by Chad: Great oilI run Amsoil in everything I own, from my Duramax to my ATVs. it has never let me down. Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: Great oil! Definitley worth the money!I only run Amsoil in my vehicles. I have never had a failure due to oil-related parts! Amsoil is the best protection. I've been using it for about 30 years now in all of my vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by Barry: YesAaaaaa+++ Item Reviewed: Signature Series Motor Oils
Reviewed by Leonard: Great productNew to the 0 - 20 My Subaru calls for it. Should be good as all the other Amsoil products I use. Item Reviewed: Signature Series Motor Oils
Reviewed by Russ: Great productWe have a fleet of trucks in our construction business and wouldn't think about using any other oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Larry: I will keep using this oilI have a 2003 S10 Xtreme pickup with the 4.3 V6 engine that is driven two to 3 thousand miles a year. Need a top quality oil that will be changed once every year. Amsoil Signature fits that need. Item Reviewed: Signature Series Motor Oils
Reviewed by Larry: Collector Car Engine ProtectionThis Amsoil 5W-30 Signature oil is going in a 1996 Impala SS collector car that has under 20,000 miles and sometimes will sit for two weeks before being cranked and driven long enough to keeps things working good. Better to have a top quality oil is that type of vehicle. Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: I will purchase this again.I use this in a 2013 Toyota Prius and it is great. Best oil on the market. Item Reviewed: Signature Series Motor Oils
Reviewed by Chester: Runs BetterGreat product will always use . Don't understand but cars just seem to run better . Enough Said Item Reviewed: Signature Series Motor Oils
Reviewed by Kevin: I would buy it againWorks like it should Item Reviewed: Signature Series Motor Oils
Reviewed by Richard: Amsoil products are all I ever use, in my vehicles.in my 2018 Triumph Motorcycle Item Reviewed: Signature Series Motor Oils
Reviewed by Clint: Great productI use this in my truck and my boys truck. I trust its longevity. I wish the price was better. Item Reviewed: Signature Series Motor Oils
Reviewed by Harvey: Great oilI have used amsoil scene 1970 never lost a motor trany or rear end with amsoil and I driven them hard raced it dragracing and rounded rounder now I have a ffg fleet of Van's running 350000 miles a year and change it every 35000 Item Reviewed: Signature Series Motor Oils
Reviewed by Logan: PerfectPerfect Item Reviewed: Signature Series Motor Oils
Reviewed by Richard: I only buy the signature oil for my vehicles.I tell people just try it and you'll see how well it protects your engines. I use it in my vehicles and my personal vehicle a 2014 Expedition has 76000 miles and doesn't use a drop of oil between oil changes once a year, about 18,000 miles. How can you not use a product that keeps you vehicle running great. My family has been using this oil for a long time and a wide range of vehicles. 2018 Shelby 350GT, the Expedition, 2000 Mustang V6, GMC 4 cylinder with over 122000 miles, boats I used to own. If it used oil I put the signature oil in it. Including my Toro zero turn that I have been using for 12 years and it still uses no oil between oil changes once a year. Item Reviewed: Signature Series Motor Oils
Reviewed by Richard: Best oil you can useI tell people just try it and you'll see how well it protects your engines. I use it in my vehicles and my personal vehicle a 2014 Expedition has 76000 miles and doesn't use a drop of oil between oil changes once a year, about 18,000 miles. How can you not use a product that keeps you vehicle running great. My family has been using this oil for a long time and a wide range of vehicles. 2018 Shelby 350GT, the Expedition, 2000 Mustang V6, GMC 4 cylinder with over 122000 miles, boats I used to own. If it used oil I put the signature oil in it. Including my Toro zero turn that I have been using for 12 years and it still uses no oil between oil changes once a year. Item Reviewed: Signature Series Motor Oils
Reviewed by Roberto: Best buyWorth the money Item Reviewed: Signature Series Motor Oils
Reviewed by Jim: A staple item in my garage !!!!Excellent Product !!! get great fuel economy Item Reviewed: Signature Series Motor Oils
Reviewed by Lawrence: I will buy this again and again and again.Use this oil in my Ford Flex, I have always used Amsoil and am very very happy with its performance. Great product. Item Reviewed: Signature Series Motor Oils
Reviewed by Joshua: Great oilIt is a great product that is working real well in my truck Item Reviewed: Signature Series Motor Oils
Reviewed by Dale: Like itAlways good Item Reviewed: Signature Series Motor Oils
Reviewed by Joe: I will continue to use Amsoil.I have used Amsoil for many years with nothing but the best performance of all my vehicles. Thank you, Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Matt: Best oil I have ever usedBest oil I have use for my car and the last brand i will ever use Item Reviewed: Signature Series Motor Oils
Reviewed by Trevor: Blood of your vehicleBest oil you can run. Period! Item Reviewed: Signature Series Motor Oils
Reviewed by Anthony: oilbest oil on the market Item Reviewed: Signature Series Motor Oils
Reviewed by Ang: I would buy this product again in the futureBest product Item Reviewed: Signature Series Motor Oils
Reviewed by Kandy: Cost vs. Time Good DealNeed this for my Toyota, I commute for work and this is a better price product for the amount of mileage it is good for. Item Reviewed: Signature Series Motor Oils
Reviewed by Michael: Best oil on the marketI use the Signature series oil in a broad range of vehicles, from my 04 Titan to a 2018 Chevy cruise. I love the extended change intervals and the security of knowing that my vehicle is protected. You cannot beat the customer service either. Item Reviewed: Signature Series Motor Oils
Reviewed by Jeffrey: Great stuffGreat products as always from Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Charlie: GreatGreat product. Item Reviewed: Signature Series Motor Oils
Reviewed by Ronald: Will buy againGreat oil for mail Jeep Item Reviewed: Signature Series Motor Oils
Reviewed by Jeff: I will continue to use the signature series oilGreat oil! Stays cleaner and our cars run smoother with a lot less top ups like the extended drain intervals! Item Reviewed: Signature Series Motor Oils
Reviewed by Max: I will definitely continue to buy my oil from Amsoil!The Best oil, period! Item Reviewed: Signature Series Motor Oils
Reviewed by Cody: Well worth itMakes my car happy Item Reviewed: Signature Series Motor Oils
Reviewed by John: ReviewGood Stuff Item Reviewed: Signature Series Motor Oils
Reviewed by Juan: YesOutstanding Item Reviewed: Signature Series Motor Oils
Reviewed by Todd: As always on every order.Simply the best. On every daily driven car that comes through my shop. Item Reviewed: Signature Series Motor Oils
Reviewed by Rick: I will buy this againUsed this in my 2019 Tundra Item Reviewed: Signature Series Motor Oils
Reviewed by Hubert: Best oil on the marketHave used this oil for many years and love the fact it keeps my engine system clean and that only have to change every 25,000 miles. I use nothing but Amsoil in all my engines. My kids use nothing but Amsoil products in all their engines, vehicles and small engines. Item Reviewed: Signature Series Motor Oils
Reviewed by Gary: Great oil!Have been using Amsoil 5W-30 motor oil in my 2008 H3 Hummer since new. Great product! Absolutely no issues and the extended oil change intervals are a big plus to me. Item Reviewed: Signature Series Motor Oils
Reviewed by Enrique: If your car is well mainyained you wont tell the differenceYou cant really tell the difference between having your oil changed Religiously and putting amsoil to be honest, I mean your car will respond just as well, but the fact knowing that amsoil is up to 4X better than conventional synthetic oils, is a big peace of mine for me Item Reviewed: Signature Series Motor Oils
Reviewed by Shaun: The very best!There is nothing better made. Top of the line! Item Reviewed: Signature Series Motor Oils
Reviewed by John: OilGreat product! Item Reviewed: Signature Series Motor Oils
Reviewed by Stanley: Repeat costumerSame amount of money as 2 oil changes but better quality Item Reviewed: Signature Series Motor Oils
Reviewed by Reginald: GoodGood Item Reviewed: Signature Series Motor Oils
Reviewed by John: Top qualityUse this in my Jaguar. Outstanding! Item Reviewed: Signature Series Motor Oils
Reviewed by Jerry: The best oil on the market.Didn't believe in magic until I used this oil in my vehicle. Item Reviewed: Signature Series Motor Oils
Reviewed by Ricky: GreeatI run this in my ecoboost explorer. Makes motor sound smooth and quite Item Reviewed: Signature Series Motor Oils
Reviewed by John: I love amsoil oilsI've been using 0w20 and other amsoil products for decades and wouldn't trust any other oils in my cars or equipment Item Reviewed: Signature Series Motor Oils
Reviewed by Moto Mike: Once a year oil changeOnce a year oil change and I'm sold. I tow a 7X16 cargo trailer 50% of the miles I put on. I put the proven best oil in and only crawl under the truck annually now. No oil loss with 160K on the truck. Item Reviewed: Signature Series Motor Oils
Reviewed by Charlie: Great ProductI have always used synthetic oil in my vehicles and used Amsoil in the past. When I found I could be a preferred customer I was very pleased to begin using it again. Item Reviewed: Signature Series Motor Oils
Reviewed by Arin: Amazing oilBest oil iv ran so far the car continues to run super smooth even with a couple days at the strip Item Reviewed: Signature Series Motor Oils
Reviewed by Luis: Best oil, hands down!!This oil is just the best of the best. Proven quality on any test out there, this oil will help your vehicle engine perform to its potential. A plus!! Item Reviewed: Signature Series Motor Oils
Reviewed by Vincent: I would buy this againAnother great product love amsoil Item Reviewed: Signature Series Motor Oils
Reviewed by Richard: Best oil I've used.I use this in a supercharged hi performance vehicle. It gets worked hard. When I change the oil you'd never know. Item Reviewed: Signature Series Motor Oils
Reviewed by Mary: Buy again and againAmsoil is the best. That is why you should always get it if you want your car to take care of you Item Reviewed: Signature Series Motor Oils
Reviewed by Colin: Still the only oil I recommendWhat can I say? I bought it for a friend with a hi performance engine. I've used Amsoil engine oils for over 35 years. Always had great longevity and reliability every time. Item Reviewed: Signature Series Motor Oils
Reviewed by William: Love the Signature Series.Excellent oil. I have used it for years without an issue. Item Reviewed: Signature Series Motor Oils
Reviewed by Paul: I will continue to use this product.I replaced the enfine and granny in my car over a year ago. The oil and tranny fluid have done fine since. I'm pleased with this product. Item Reviewed: Signature Series Motor Oils
Reviewed by Marcus: 100% Amsoil since first oil change.Personal use on 2012 WRX, with 90k miles. Item Reviewed: Signature Series Motor Oils
Reviewed by Sengsy: Smoother and more mpg!For my new car, It is running much smoother receiving more MPGs than OEM oils and/or even the best over the counter motor oils. Thanks! Item Reviewed: Signature Series Motor Oils
Reviewed by Sengsy: Only the best oils!The best of the best oils i only use...Amsoil! Thanks! Item Reviewed: Signature Series Motor Oils
Reviewed by Jim: FJ Cruiser standardI have used this oil for 203,000 miles since my FJ Cruiser was new. It is the best! Item Reviewed: Signature Series Motor Oils
Reviewed by Harry: unbelievable fantasticmy Subaru forester says thank you and purring along for nine years could not be a happier person. Item Reviewed: Signature Series Motor Oils
Reviewed by Steve: Definitely use again.Great oil glad I made the switch. Item Reviewed: Signature Series Motor Oils
Reviewed by Steven: Great product.I use Amsoil in my 4 vehicles and ZTR mower. It's the best. Item Reviewed: Signature Series Motor Oils
Reviewed by Nicholas: I only trust AmsoilAmsoil is the only oil that has consistently been able to withstand the unbelievable abuse I put my engine through. Item Reviewed: Signature Series Motor Oils
Reviewed by Terrance: Absolutely has to work.Have used this product in my wife's Subaru Crosstrek since new in 2014. It has worked flawlessly ever since. I wouldn't use anything but Amsoil in my wife's car as she has to travel through desolate territory just to get to and from work. I absolutely need it to be there for her. It does the job great. Item Reviewed: Signature Series Motor Oils
Reviewed by Roberto: Good productGood product Item Reviewed: Signature Series Motor Oils
Reviewed by Alexander: Excellent oiI am using this oil lately and I am very satisfied with it. Usually I change it every year but I didn't exceed 9500 miles. Engine is running smooth and quiet. Thanks. Item Reviewed: Signature Series Motor Oils
Reviewed by Mac: Great product.Use in all my late model cars Item Reviewed: Signature Series Motor Oils
Reviewed by MARK: I will continue to buy this oil and do my own oil changes!!I buy this oil all the time! Every oil change! I have used all the brands over many years and Amsoil is my preferred!! I have put 150k miles on my Tundra using this oil and it's runs like new! Item Reviewed: Signature Series Motor Oils
Reviewed by William: Will only buy amsoil. Everything else is just lubed waterNever had an issue in the vehicles we use this in. I have an 08 grand caravan, 16 Chevy Cruze, and a 16 Nissan NV 12-passenger. Item Reviewed: Signature Series Motor Oils
Reviewed by Quoc: I would alway used this oilThe best oil I have used by far Item Reviewed: Signature Series Motor Oils
Reviewed by Joel: Great oil!Almost 200,00 miles on a 5 cylinder motor and it still runs great, started running amsoil at 2000 miles Item Reviewed: Signature Series Motor Oils
Reviewed by Bob: I have used your products for 20+ years.I use your products because I trust them. Item Reviewed: Signature Series Motor Oils
Reviewed by William: Ultimate engine motor oilI love this oil and will never use anything else again. The motor runs so much stronger and we picked up three miles per gallon. Item Reviewed: Signature Series Motor Oils
Reviewed by Chad: The only oil I use for MY vehicles.It is what the car manufacture calls for, and we have had no problems with just changing the oil once a year. We now have over 50,000 miles on the SUV, and it averages better fuel economy than what the EPA rates it at. Item Reviewed: Signature Series Motor Oils
Reviewed by Michael: Nothing but AMSOIL for me!I use this in our 2000 4Runner, which we use to pull our camper during the summer. It gets a real workout in the Colorado mountains, and the signature series has been great at protecting the V6 engine from high stress and heat. Item Reviewed: Signature Series Motor Oils
Reviewed by Joe: I would by it againGreat product Item Reviewed: Signature Series Motor Oils
Reviewed by Janno: 5w20Best synthetic oil on the planet. Item Reviewed: Signature Series Motor Oils
Reviewed by Bryan: Definitely a believer in AmsoilI use this superior product in my 2013 f150 Coyote 5.0l, very proud to use Amsoil for every piece of equipment I own!!!! Item Reviewed: Signature Series Motor Oils
Reviewed by Julio: Good productAMSOIL oils something to trust Item Reviewed: Signature Series Motor Oils
Reviewed by Bruce: No other oil will doLove this oil for our GDI turbo engine Item Reviewed: Signature Series Motor Oils
Reviewed by Steve: Economical4,500 miles and have not burned a drop of oil. Engine runs a little cooler than with other oils. Item Reviewed: Signature Series Motor Oils
Reviewed by Corbett: I will continue to use this awesome product.Best 100% synthetic engine oil ever. Item Reviewed: Signature Series Motor Oils
Reviewed by Charles: Favorite motor oil of my Ford F-250!Motor oil is the cheapest mechanic you will ever pay! Why not use the best you can buy? Item Reviewed: Signature Series Motor Oils
Reviewed by Charles: Been using Signature Series motor oil for years!I use 5W50 in my Mustang GT. I have been using Signature Series motor oil in all my vehicles for many years with excellent results. I change my oil at 15,000 mile intervals which works out to about once per year. Item Reviewed: Signature Series Motor Oils
Reviewed by Viacheslav: Must have!Best oil ever, keep using it for the last 10 years. Definitely will buy again! Item Reviewed: Signature Series Motor Oils
Reviewed by James: Happy with Amsoil!I have been using Amsoil in my truck(s) for almost 10 years now and I love it! Mileage went up when I switched to Amsoil and my truck runs great. Best of all is the intervals between oil changes. Item Reviewed: Signature Series Motor Oils
Reviewed by Michael: Keeps on goingI have been using Amsoil 0-20 synthetic oil and the recommended filter in my 2008 Toyota Tundra since mileage hit 5000, now has 63,000 miles. I change the oil every 8000 miles and each time the oil is clean and looks almost new. No smoke and no problems. Item Reviewed: Signature Series Motor Oils
Reviewed by Steve: I buy this product routinely.I have used this oil for years in multiple vehicles. Couldn't be happier. Item Reviewed: Signature Series Motor Oils
Reviewed by Dan: Peace of mindIt's just good to know that you have the very best product in your vehicle. If you have to run over your mileage limit or run your baby a little harder than most people it's just good to know you have the very best protection. Item Reviewed: Signature Series Motor Oils
Reviewed by James: aaaa++++A+ Item Reviewed: Signature Series Motor Oils
Reviewed by Roger: I will buy this product again and again.Have no problems with any vehicle that I use the oil in. Item Reviewed: Signature Series Motor Oils
Reviewed by Steven: Simply the BestI have been exclusively using Amsoil since 1984 because of it's extended drain intervals and premium quality. It is the best synthetic oil product available. Item Reviewed: Signature Series Motor Oils
Reviewed by Jesus: ReviewExcellent Item Reviewed: Signature Series Motor Oils
Reviewed by Adan: GreatDid the job, truck runs really good/Better than it did with rotella. I'm surprised with results. Item Reviewed: Signature Series Motor Oils
Reviewed by Todd: Great productsHave used amsoil for 15 plus years. Wouldn't change back to any other oil! Item Reviewed: Signature Series Motor Oils
Reviewed by Adam: Lasts longer.Helps me go longer without changing oil as often since I drive 150 miles a day for work. Item Reviewed: Signature Series Motor Oils
Reviewed by Michael: Signature BrandTruly last 25k or 1 year with out a oil change, remarkable. Three years strong, keep up the good work. Item Reviewed: Signature Series Motor Oils
Reviewed by Scott: Nothing but the best for my equipment!Been using AMSOIL lubricants in everything I can get it in since 1985. Have never had any issues. Used it in my 1983 Ranger that I bought new up thru and including my new 2010 MKZ, 2015 F-150 Lariat and 2016 Fusion. Best in the business and cheap insurance for everything I own. Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: I WILL buy again. Easy to order on line.Superb Motor oil. My Elantra has the best. Item Reviewed: Signature Series Motor Oils
Reviewed by John: I will buy this oil again. Surfing other products on line.Great product. Got what I ordered on time. No hassle. Item Reviewed: Signature Series Motor Oils
Reviewed by Ron: I will use this foreverUse this in my new engine on my 2001 Jeep tj great stuff 👍👍 Item Reviewed: Signature Series Motor Oils
Reviewed by Jim: yesgreat product ! Item Reviewed: Signature Series Motor Oils
Reviewed by Larry: YesThe best for my vehicle Item Reviewed: Signature Series Motor Oils
Reviewed by Patrick: Love this oil for my vehicles!!I have been using Amsoil products in my vehicles for a long time and I will use nothing else in them!! Item Reviewed: Signature Series Motor Oils
Reviewed by William: I will be buying this again!!The only oil my car is going to see for the rest of it's life!! Item Reviewed: Signature Series Motor Oils
Reviewed by William: I will be buying this again!The only oil my car is going to see for the rest of it's life!! Item Reviewed: Signature Series Motor Oils
Reviewed by Craig: yesI use this in my Grand Cherokee Item Reviewed: Signature Series Motor Oils
Reviewed by Mark: Always use amsoilBeen using amsoil in allmy vehicles for years works great Item Reviewed: Signature Series Motor Oils
Reviewed by Carlos: ExcellentRxcellent!!! Item Reviewed: Signature Series Motor Oils
Reviewed by Jaime: Engine oil from heaven!Best synthetic oil I've ever used. Makes engine run smoother and quieter. Item Reviewed: Signature Series Motor Oils
Reviewed by Jaime: Engine oil from heaven!Best synthetic oil I've ever used. It makes the engine run smoother and quieter. Item Reviewed: Signature Series Motor Oils
Reviewed by William: Only the Best for my Mopars!Mopar or no car! Amsoil or no Oil! Item Reviewed: Signature Series Motor Oils
Reviewed by Austin: No question that amsoil is the bestBest oil out there. 3rd party testing to prove it. I'll choose amsoil everytime. Item Reviewed: Signature Series Motor Oils
Reviewed by David: Really!Have used now for many years in all my vehicles! BUT the cost is getting to be too high!! Item Reviewed: Signature Series Motor Oils
Reviewed by John: I have used this oil for 4 years now.I use this oil exclusively in my vehicle. Never a complaint. Completely comfortable with it Item Reviewed: Signature Series Motor Oils
Reviewed by Sammy: Great products!Been using AMSOIL products for over 20 years! Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: oH YEAH !THEE VERY BEST. Item Reviewed: Signature Series Motor Oils
Reviewed by Keith: I will continue to buy and use as long as I have my Jeep.I use in my 2007 Jeep Liberty. I change every 12K miles. Item Reviewed: Signature Series Motor Oils
Reviewed by Ed: AMSOIL PURCHASENO TROUBLE TRANSACTION Item Reviewed: Signature Series Motor Oils
Reviewed by Everett: Will keep using this product!Been running this oil in my 2007 Ford F150 since about 36,000 miles. Now has 317,566 and still going strong. Love the protection, changed every 15,000 with Amsoil filter as well. Item Reviewed: Signature Series Motor Oils
Reviewed by Marc: Greatest company and productsI swear by amsoil products. I've been using them for many years. Greatest on earth. And the company makes it so easy for you to deal with. Will never stop using their products. Item Reviewed: Signature Series Motor Oils
Reviewed by Duane: In my opinion, the best synthetic lubrication product.I use Amsoil in my three vehicles and in my 2001 Road King. In all of these years, never an engine or wear problem. Item Reviewed: Signature Series Motor Oils
Reviewed by Jim: Will buy this every time.Best product out there. Item Reviewed: Signature Series Motor Oils
Reviewed by Joey: I think 🤔 I'll stick with Amsoil oil and filters!It's the first time I've used Amsoil in my 5.0 F-150, so far so good, my fuel mileage increased, truck seems to have a lil more pep to it! Item Reviewed: Signature Series Motor Oils
Reviewed by Ruben: Lifetime customerBest oil I've used by far! Been great for the F150 Ecoboost and haven't had turbo or timing chain issues because of it! Item Reviewed: Signature Series Motor Oils
Reviewed by Steven: I will be buying more.Best product on the market. I love it. Item Reviewed: Signature Series Motor Oils
Reviewed by Ron: I will use this foever!I have been using this oil for years! It's a great product. I won't use any other oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Danny: GreatBest oil on the market Item Reviewed: Signature Series Motor Oils
Reviewed by Alejandro: Motor oil.....👌👍👍👍Awesome product.... Thanks.... Item Reviewed: Signature Series Motor Oils
Reviewed by William: i use amsoil in everythingi believe signature series oils from amsoil are among the best you can get. i trust amsoil in everything i own. i don't feel i need to research every product for every piece of equipment, just get amsoil for it Item Reviewed: Signature Series Motor Oils
Reviewed by Lee: I am not going to use any other oil but signature 0W 20I've been using signatures TVs engine oil for the past three years I have no problem .Is the best all on the market right now and if you need your engine to lass use this oil Item Reviewed: Signature Series Motor Oils
Reviewed by Michael: We will always use AMSOILAMSOIL signature series is awesome we also use the AMSOIL oil filter also and highly recommend these products to anyone wanting to save some money by not having to change your oil as often. We used it on our Ford Escape and at 150000 miles it was as smooth and quiet as it was new and still no oil consumption between the extended oil changes unfortunately it was totaled when a person ran a stop sign. Item Reviewed: Signature Series Motor Oils
Reviewed by 2ManyToys: I've regularly used this oil since our truck was newOur truck is a 2001 Ford Expedition that we purchased new. Eighteen years later, we have never had to do any internal engine work. This is a daily driver that we can take cross country. I wouldn't use anything else! Item Reviewed: Signature Series Motor Oils
Reviewed by Everett: I highly recommend this oil.Best oil you can run period, especially in a turbo charged engine. Item Reviewed: Signature Series Motor Oils
Reviewed by Brian: Buy this amazing lube.I learned about Amsoil when I was stationed down in Arizona I've been using it now for 15 years straight and I will never go back to regular oil. I have since retired from the military but I will not retire using this product. Item Reviewed: Signature Series Motor Oils
Reviewed by Nancy: Quality makes a differenceAMSOIL oil is all I will put in my cars. I want the peace of mind knowing my cars are protected by quality products. Item Reviewed: Signature Series Motor Oils
Reviewed by Nancy: Security knowing your protected!All my cars are older and I feel secure with this oil protecting my car. Item Reviewed: Signature Series Motor Oils
Reviewed by Nancy: Fewer Oil ChangesLove not changing the oil so often since I am a busy Grandmother. Knowing the oil is protecting my car. Item Reviewed: Signature Series Motor Oils
Reviewed by Matthew: Good oilChanged my 6.0 over to this oil. Starts much easier in the cold Item Reviewed: Signature Series Motor Oils
Reviewed by Myles: I will continue using this product, for sure!I use this in my 2010 Tundra, and don't worry about the engine at all! Item Reviewed: Signature Series Motor Oils
Reviewed by Myles: I buy with confidence, this product, all the time.I use this in my 1991 Lexus with over 400,000 kms and this car is still Item Reviewed: Signature Series Motor Oils
Reviewed by Larry: Vette loverHave been along time user of Amsoil products , never had a problem with any of the products. I have three high performance vehicles and use everything from oil and filters to brake fluid from Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Cameron: Good stuffGood stuff smooth out my engine Item Reviewed: Signature Series Motor Oils
Reviewed by Shawn: Great productIt works great. My Jeep runs smoothly past 6000 miles Item Reviewed: Signature Series Motor Oils
Reviewed by Bill: I would buy it again.They did synthetic first. It was the best then and still is. If you're going to keep your truck or car for years it's worth every penny. Item Reviewed: Signature Series Motor Oils
Reviewed by Christian: Will buy againAmazing Item Reviewed: Signature Series Motor Oils
Reviewed by Valentine: I will buy another case to keep Amsoil on hand.Replaced the eng oil with Amsoil. I could tell a difference from the get go. Amsoil is good stuff. Item Reviewed: Signature Series Motor Oils
Reviewed by Karl: Using Amsoil for 39 yearsBeen using Amsoil since 1980. Item Reviewed: Signature Series Motor Oils
Reviewed by Edward: The only oil I useUsing this oil for past 5 years for our three Toyotas. The best oil so fur. Item Reviewed: Signature Series Motor Oils
Reviewed by James: YesGreat products Item Reviewed: Signature Series Motor Oils
Reviewed by Rex: Best oil on the marketI have used the Signature Series oil for many years. I only change it once a year on all my vehicles which will approach 25,000 miles on average. Item Reviewed: Signature Series Motor Oils
Reviewed by Michelle: Been using this for 5 yearsLove this stuff! Item Reviewed: Signature Series Motor Oils
Reviewed by Manuel: Happy with the AMSOIL Signature 0W-20 Synthetic motor oilHappy with the AMSOIL Signature 0W-20 Synthetic motor oil. Been using it for many years. Item Reviewed: Signature Series Motor Oils
Reviewed by Brian: Great productsI have used this oil on my 1996 Chevy Silverado 2500 since it was new. No issues with the motor and runs as smooth as when it was new. Item Reviewed: Signature Series Motor Oils
Reviewed by Roman: Great oilGreat oil Item Reviewed: Signature Series Motor Oils
Reviewed by John: quality producthave used this product for 5 years and have had no related problem with this oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Jomel: Great productAccurate and tested to be one of the best motor oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Kenny: Great product highly recommend itHappy love it I have been using this product for years fantastic Item Reviewed: Signature Series Motor Oils
Reviewed by David: I love this oil!Since iv placed Amsoil in my car she has improved alot! I love how the oil doesnt burn as fast even with my girl having increased HP. You want better oil for your car...i highly recommend this one. Item Reviewed: Signature Series Motor Oils
Reviewed by Steve: yeswork truck and cars Item Reviewed: Signature Series Motor Oils
Reviewed by Mark: Excellent product!Purchased for a Ram 2500 with 6.4 as an alternative to factory oil. Has been excellent so far! Item Reviewed: Signature Series Motor Oils
Reviewed by Raymond: I Highly Recommend Amsoil products for All engines.I switched over from 5w20 to 0w30 because I use my 13 Ram 5.7 Hemi engine for towing ,this engine runs great, went on vacation this April to Tennessee, didn't Tow any thing my average millage is now (Hwy)19.2,this is Great the engine just feels good,been using Amsoil since 1988. Item Reviewed: Signature Series Motor Oils
Reviewed by Alexander: Will only be using this product!Right for the Tundra! Item Reviewed: Signature Series Motor Oils
Reviewed by Alexander: Only will be using this product!Right for the Shelby Item Reviewed: Signature Series Motor Oils
Reviewed by Jay: Without hesitationI use signature 5W 30 in my 2007 Range Rover Sport Super Charged. I will not use any other brand, the truck has had regular oil in it from factory to the 5000 mile mark, since then we have only used Amsoil signature synthetic and rightfully so the Range Rover has 245k miles and it' still as strong as the first week we owned it. Thank you Mr Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by David: New CarI use this in my new car. Item Reviewed: Signature Series Motor Oils
Reviewed by David: GeneratorMakes my generator run quieter Item Reviewed: Signature Series Motor Oils
Reviewed by David: The Good StuffI use Amsoil exclusively. Item Reviewed: Signature Series Motor Oils
Reviewed by Lorenz: Lets try this againSo i had the oil run for almost 4000 kms 24/16 hwy/city km driving everyday. I lost about eight of an inch on my dipstick reading and it looks like the oil is not gonna last for whatever you guys claimed. I will do my oil change soon and will use oem filter instead of wix see if it will make any difference Item Reviewed: Signature Series Motor Oils
Reviewed by Dan: Great experienceGreat product with great service Item Reviewed: Signature Series Motor Oils
Reviewed by David: Yes. Always will put amsoil in any machine.I uesd amsoil in my mother car. Did a engine flush. With her oil change. When it was done. She drove to her house which is up a mountain. She notice right away how smooth the engine running. Big difference she said. Thats from a women who dosent know about different oils. Item Reviewed: Signature Series Motor Oils
Reviewed by Roy: Amsoil is really this good!Product used in 2014 Fusion HYbrid. Fuel mileage improved 3 mpg and engine so quiet you think you are on battery. Item Reviewed: Signature Series Motor Oils
Reviewed by Roy: Amsoil used in all my vehicles.Product used in a 2016 Mustang GT with Roush supercharger. 690 HP which is up from 670 on factory oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Dominic: I absolutely will buy AMSOIL Signature Series Oil againMy Toyota RAV4 runs smoother with better fuel economy that it did with the MOBIL Full Synthetic that was being used previously. This oil is also used in my Cummins whole house generator. Engine runs smooth and quieter. Item Reviewed: Signature Series Motor Oils
Reviewed by George: A Great Product Protecting My EngineI know that Amsoil is relentless in producing the finest motor oil anyone can purchase for vertually any vehicle. My high performance car still runs like new with no issues using Amsoil SSO 5W-20 for the last ten years. Item Reviewed: Signature Series Motor Oils
Reviewed by Bryan: 2017 Honda pilot 0W 20 signature seriesEvery six months oil change intervals at 10,000 miles with Amsoil's oil filter. UOA came back showing the oil had plenty of life left in it. 10,000 and every six months is where I feel comfortable. Item Reviewed: Signature Series Motor Oils
Reviewed by Joseph: YesRun this in my 2016 Subaru legacy 2.5 and works well Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: Best product, fast shipping.Best product, fast shipping. Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: YesHeavy duty 50,000 miles year plus idling time Item Reviewed: Signature Series Motor Oils
Reviewed by Brett: Only the bestAMSOIL customer for 20 years. Outstanding products. Best engine oil products available. Item Reviewed: Signature Series Motor Oils
Reviewed by Duane: LongevityLove the long life of the oil. Still retains lubrication quality after a year in use. Item Reviewed: Signature Series Motor Oils
Reviewed by Larry: Will by for other vehicle'sI use it a2005 Mercury, it was what he used so I just kept using it, it has around 220500 miles on it and I think the rear seal has a little leak. I also us Am soil in my Harley and has made a difference . I have also bought it for my 93 diesel I am working on. Item Reviewed: Signature Series Motor Oils
Reviewed by Daniel: still good!I been using this in a 2016 Chevy Trax from new! uses on oil @ 53'600 miles! Item Reviewed: Signature Series Motor Oils
Reviewed by Austen: Best oil money can buyRunning smoother and cooler, hardly any burn off and keeps the inside nice and clean. Item Reviewed: Signature Series Motor Oils
Reviewed by Franco: I will continue using productSeems like a great product gas mileage improved about 1-2 miles per gallon hiway engine sounds slightly quieter Item Reviewed: Signature Series Motor Oils
Reviewed by Eric: I will buy this product for my next oil change.I feel the AMSOIL 5/30 is the best protection for my engine. Item Reviewed: Signature Series Motor Oils
Reviewed by Josh: I do buy it when my truck needs a oil changeI use it in my truck and it last a long time before I have to change the oil again it pays to use the good stuff Item Reviewed: Signature Series Motor Oils
Reviewed by David: QualityI like that I Can count on quality. Item Reviewed: Signature Series Motor Oils
Reviewed by Dave: Great oilAwesome oil, Item Reviewed: Signature Series Motor Oils
Reviewed by Vance: Signature Series 5w-30Good oil I won't use anything else in my 2018 Camaro ZL1! Item Reviewed: Signature Series Motor Oils
Reviewed by Vance: Signature Series 5w-20Very happy with this oil so far! I accumulate a lot of miles weekly and I'm tired of changing my oil every month. So I ready to pay more to get more. Keep up the good work! Item Reviewed: Signature Series Motor Oils
Reviewed by Anthony: Happy with premium synthetic oil.I've been using this Amzoil premium synthetic oil for 2 years and have been very happy with it. My car is turbocharged and runs smooth and cool with this oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Cliff: AMSOIL is in every vehicle I own, bumper to bumper.This product is in my wife's car, which puts me at ease, she won't have problems while traveling. Item Reviewed: Signature Series Motor Oils
Reviewed by Cheryl: AbolutelyLove it,great product. Item Reviewed: Signature Series Motor Oils
Reviewed by Bernardo: I would use Amsoil on all company vansGreat product, my Ford Transit 3.7 engine runs very quiet and smooth. Item Reviewed: Signature Series Motor Oils
Reviewed by Saverio: Best oil on the market!Great product! Won't use anything else. Item Reviewed: Signature Series Motor Oils
Reviewed by W.H.: Great productIt works great in my 2018 Silverado. Been using your product from 1980. Wood not uses anything esle. Item Reviewed: Signature Series Motor Oils
Reviewed by John: would buy againcar runs with more pep Item Reviewed: Signature Series Motor Oils
Reviewed by Stephen: Great productLike all things I'm skeptical, but The signature series has proven its worth both in cost and in performance. I've been given nothing but superior results by this product. Both my trucks have it in them and both run smoother and quieter and with just this change have shown better gas mileage. Item Reviewed: Signature Series Motor Oils
Reviewed by Guenther: love the oiluse on all my high mileage vehicals...i get about an extra miles more per gallon on average per tank, so big cost savings, plus i only change oil once a year!! Item Reviewed: Signature Series Motor Oils
Reviewed by Tere: I would buy it againWe love using this oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Jack: yes.changed oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Bernardino: I would buy it again.Use for Subaru Crosstrek average fuel consumption 27mpg..now 30.2mpg! Item Reviewed: Signature Series Motor Oils
Reviewed by Jeff: 5W-20 great engine oilI have always used this product in my Honda Civic. My car has 168k miles on and it runs great. You will be ready for a new car before you engine wears out. Item Reviewed: Signature Series Motor Oils
Reviewed by Romie: Best car oilSince I used this product I'be been changing my car oil every 7000 miles and the oil is still free flowing even @ 7000. Item Reviewed: Signature Series Motor Oils
Reviewed by Michael: I have a cupboard in garage stocked with Amsoil productsI have put nothing but Amsoil in my vehicles. This is for 2018 Denali with 6.2 liter. Try to keep it running like new for years to come Item Reviewed: Signature Series Motor Oils
Reviewed by David: Yes9Have used it for years and works great Item Reviewed: Signature Series Motor Oils
Reviewed by Joey: Best Oil out there.Was nervous about using thicker oil in Prius, but glad I did. With my miles getting higher, Amsoil has done wonders to my car. Going to continue using all Amsoil products for my vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by James: Great Product that provides unequaled protection all year.Outstanding product that I have used in my 2012 GMC Terrain V-6 since I purchased it 89,000 miles ago. I change once a year and put about 12-15 thousand miles per year on the car and the EA filter. Never any issues and NO significant oil loss each year. Item Reviewed: Signature Series Motor Oils
Reviewed by Doyle: Great productGreat product, it's a 2 hour round trip to do a oil change in my rural area. Doing it myself + the extended service miles is very welcome. Item Reviewed: Signature Series Motor Oils
Reviewed by Perry: Amsoil Super OilUsed to use other top tier oils and after hearing that Amsoil is real 100% synthetic oil and not that bogus misleading "Full Synthetic" I switched to the real 100% synthetic Signature Series 0w20, Started doing my own oil changes on my Lifted truck, found that other oils at 4K miles were literally black but Amsoil was much lighter in color proving that it takes much more abuse. Amsoil is a Super Oil Item Reviewed: Signature Series Motor Oils
Reviewed by Blake: Great stuffGreat product! Item Reviewed: Signature Series Motor Oils
Reviewed by Rafael: 5w-20Put it n my mustang and works amazingly! Item Reviewed: Signature Series Motor Oils
Reviewed by Leo: Runs greatI have to say its is the best I ever used, but I want to have the oil tested to what is going on in my cars engine, as I said my car is running smoother than ever I still think it beats all other oils. Item Reviewed: Signature Series Motor Oils
Reviewed by Ty: Keeps us runningGreat Oil Item Reviewed: Signature Series Motor Oils
Reviewed by Ty: Great oilGreat oil. I have over 200000 miles on my SUV Item Reviewed: Signature Series Motor Oils
Reviewed by Frank: That the only oil I useI put a 5/30 in my 2016 eco diesel. It's the best oil on the market for that Ram Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: Only oil you'll ever need !It's all good ! When you run with the Best you can forget about the rest Item Reviewed: Signature Series Motor Oils
Reviewed by Kenneth: I would buy againExcellent product! Item Reviewed: Signature Series Motor Oils
Reviewed by Marty: Highly recommendedThe best of the best Item Reviewed: Signature Series Motor Oils
Reviewed by Richard: I change oi; every 22,500 miles, faithfully.................This is the only oil I use-and always will.......................... Item Reviewed: Signature Series Motor Oils
Reviewed by Raider Rodney: Fantastic oil!I researched oil and tests for years before deciding on going with Amsoil's Signature Series for my DSM. The testing speaks for itself, less wear, better performance...period. Item Reviewed: Signature Series Motor Oils
Reviewed by Dan: Only stuff I useOnly once a year, perfect, saves time and money, the old stuff comes out cleaner than conventional oil would, and I know it would last longer. Item Reviewed: Signature Series Motor Oils
Reviewed by Lance: Increased MPG!Used in my wife's 2017 Ram 2500. Switched a year ago and noticed increased mpg. Great product! Item Reviewed: Signature Series Motor Oils
Reviewed by Henry: Always buyUse n every vehicle I have for many years. Great products Item Reviewed: Signature Series Motor Oils
Reviewed by Joseph: I use amsoil in every thing I own.Use this in my daughters honda civic she loves the once a year oil changes Item Reviewed: Signature Series Motor Oils
Reviewed by Gene: I will never use any other oil in my vehicles.I use Amsoil Signature Series oil exclusively in my 2007 Expedition and my 2010 F150. Love the protection and improved performance in both vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by Jayson: I would recommend thisGreat product....great protection. Item Reviewed: Signature Series Motor Oils
Reviewed by Keith: 2003 s-10Use this oil in my 2003 S-10 2.2 and have 576,198 miles original motor Item Reviewed: Signature Series Motor Oils
Reviewed by Juan: You need to buy this oil product.I love this oil. I will be using this oil on my wife's vehicle next oil change. The only thing I don't like is I need to add 1 to 2 quarts of oil before the next the oil change. Over all LOVE it. Item Reviewed: Signature Series Motor Oils
Reviewed by Peter: Most trusted... simply that!I use AMSOIL products---particularly oils in every vehicle that I have owned since 1968! This is an excellent product. I have never had a hitch or failure using ANY of the products. All my relatives and friends are convinced converts! It is comforting not to have any worry about your lubricants, regardless of their use. Item Reviewed: Signature Series Motor Oils
Reviewed by Tony: Easier cold weather startsI switched to Amsoil full synthetic after experiencing some sluggish cold weather starts using the competitors conventional oil. Now I have quicker cold weather starts and great warm weather protection. I have not only switched my trucks to Amsoil but also my boat and four wheelers. Item Reviewed: Signature Series Motor Oils
Reviewed by Rod: Excellent oilGreat product Item Reviewed: Signature Series Motor Oils
Reviewed by Rodger: Great oil and can trust the product.Love the product. Vehicle runs cooler and sounds quieter. Item Reviewed: Signature Series Motor Oils
Reviewed by Bruce: OilAwesome product Item Reviewed: Signature Series Motor Oils
Reviewed by Big B: Saves money Top produceAms is the best oil I have used totally sold on the product Item Reviewed: Signature Series Motor Oils
Reviewed by Steven: isnt 5 stars enough to submit......guess not.fill it out for me Item Reviewed: Signature Series Motor Oils
Reviewed by D: The only oil out there.Fantastic product. I use it in my Ridgeline. I opened the oil cap just to look around, the inside of the engine looked new even with over 100,000 miles. Never uses a drop. Item Reviewed: Signature Series Motor Oils
Reviewed by Bud: Change to Amsoil and noise went awayI own a Range rover sport 08 and started getting timing chain noise for a second or 2 after start up after switching to Amsoil the noise went away and my oil is much cleaner now. Item Reviewed: Signature Series Motor Oils
Reviewed by Mckenney: I going them again and again. I LOVE IT.I used your oil more than 15 years, now my car run like BRAND NEW (My car Is Honda Accord 2008). Thank you. Item Reviewed: Signature Series Motor Oils
Reviewed by Apex guy: Always use AMSOILGreat product, my engines look great when I open them up! I run amsoil in two turbocharged cars and a streetbike. Track days, canyon roads, daily driving, it's great for it all! Item Reviewed: Signature Series Motor Oils
Reviewed by Whitetundra18: Great oilI have been using Amsoil products for over 20 years. Item Reviewed: Signature Series Motor Oils
Reviewed by Ace: Worth every pennyBeen using for last 5 years. Stopped my old engine from knocking, and went from using oil to not using when I switched to Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Joe: Oil and filterVery good product, I use on all my oli changes. Item Reviewed: Signature Series Motor Oils
Reviewed by Persistent: I only buy the best!As long as Amsoil continues to win the comparison tests against the competition, I will continue to purchase this product. The pressure is on Amsoil! Item Reviewed: Signature Series Motor Oils
Reviewed by Matt: 2017 Taco slight MPG gain2017 Taco TRD offroad 4x4. Item Reviewed: Signature Series Motor Oils
Reviewed by huffy: the good stuff!I have a 2010 minivan that used 1/2 qt. per 1000 mil. after using Item Reviewed: Signature Series Motor Oils
Reviewed by Pat: I ended up getting the transmission fluid.I initially ordered the transmission fluid and accidentally got the engine oil. After returning the engine oil and receiving transmission fluid signature series, I must say how pleased I am. I noticed the few MPG improvement after changing the transmission fluid which had 43K on it. The engine shifts through the gears more smoothly. Item Reviewed: Signature Series Motor Oils
Reviewed by My bader: I'll keep buying amsoil for life.I put this in my wife's Item Reviewed: Signature Series Motor Oils
Reviewed by N/A: Signature reviewGreat oil, everything advertised is accurate! Item Reviewed: Signature Series Motor Oils
Reviewed by shorty: love this oilmy truck has 256000 mile run like new Item Reviewed: Signature Series Motor Oils
Reviewed by NVTGhost: Best I've found!Keep my car in Tip top shape. Item Reviewed: Signature Series Motor Oils
Reviewed by Torque Man: Great QualityI use the oil and filters in my muscle cars and truck. The click everyone complains about went away in the motors .Easy startup on the motors and no dry lifter sounds. Item Reviewed: Signature Series Motor Oils
Reviewed by stanger: Love the product!Greatest point is that I only need to replace the oil once per year as I only put on approximately 25-30,000 kms per year. Item Reviewed: Signature Series Motor Oils
Reviewed by Cgc: So far...Seems good....engine hasn't blown yet. Item Reviewed: Signature Series Motor Oils
Reviewed by HICSMMA: Best Oil's EverI use all Ams in all my toys and cars! You get what you pay for. This is the best. Item Reviewed: Signature Series Motor Oils
Reviewed by Jeff: Peace of MindWhen trying to go the full 8000km between oild changes typical synthetics do seem the break down around 6000km, You can tell but the return of valvetrain chatter even faintly after startup. I've noticed the Signature series holds up and I no longer hear that return as the miles / km's increase. Great Product! Item Reviewed: Signature Series Motor Oils
Reviewed by Guilty-Crown-: Its the best, it works, its provenThe title says it all been buying for a long time for multiple different vehicles never fails Item Reviewed: Signature Series Motor Oils
Reviewed by Mark: The bestHave used this oil for 20 years along with EA filters on my vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by Gallaticus: The Only Oil I TrustI use Amsoil Signature Series Synthetic oil in my 2011 Toyota FJ Cruiser along with many other Amsoil Products and I will never look back. I change my oil and filter every 10,000 miles. I go 25,000 between oil changes on my daily driven 2006 Pontiac Grand Prix. My FJ Cruiser sees a lot of towing and off road use so I change it more often than recommended; although I'm more than certain it could handle the 25,000, no problem. Item Reviewed: Signature Series Motor Oils
Reviewed by HollisJR: I would buy this product againMy Honda CRV runs great on this oil. My mileage has increase and it just runs smoother. I highly recommend this oil. The best in the business. Item Reviewed: Signature Series Motor Oils
Reviewed by none: Am alongtime preferred customer, love your products.Best in the business Item Reviewed: Signature Series Motor Oils
Reviewed by Zac: The best of the bestLook at any proper sheer test and this wins. The only oil I'll trust in my boosted built engines! Item Reviewed: Signature Series Motor Oils
Reviewed by Bryan: Wonderful productWonderful product I could tell as soon as I started my vehicle it sounded much quieter and I'm getting a little over a mile and a half better gas mileage. Item Reviewed: Signature Series Motor Oils
Reviewed by RJ: I will buy this oil again!!!Had a slight tapping noise coming from my engine, after a oil change and new filter will AMSoil the sound was almost unheard, after a few hundred miles the engine is purring like a kitten : ) Item Reviewed: Signature Series Motor Oils
Reviewed by Eddie: I would buy all their products.Why because it is the best. Period! Amsoil is the best product company in the nation. Their staff are courteous knowledgeable and will research the items best for your vehicle upon your request so you would get the specific items. Item Reviewed: Signature Series Motor Oils
Reviewed by Woodmansk: DefinitelyIs there a better oil?? I think not Item Reviewed: Signature Series Motor Oils
Reviewed by Big Red: QualityI love this product only the best ! Item Reviewed: Signature Series Motor Oils
Reviewed by meg: i would buy this product againbetter than the oem recommended Item Reviewed: Signature Series Motor Oils
Reviewed by Bill The Finn: Do that make other oil???11 out of 10 Item Reviewed: Signature Series Motor Oils
Reviewed by O-tie: The best oil I have ever usedI have used 5w20 for many years in our f150 ford trucks and will continue for many years to come Item Reviewed: Signature Series Motor Oils
Reviewed by Capgoat6: Best Oil #1This oil has always delivered the best protection for any engine. It keeps camshafts and other engine parts from ever having a metal to metal issue. Item Reviewed: Signature Series Motor Oils
Reviewed by Bob: I have been using Amsoil since 1996Been using Amsoil since 1996 Item Reviewed: Signature Series Motor Oils
Reviewed by Honda: Best oil on the marketI would not hesitate to buy several cases of this my car runs great since I started using this don't hesitate to buy Item Reviewed: Signature Series Motor Oils
Reviewed by Mike: great product- the best oilYou can feel the difference compared with other synthetic oil Item Reviewed: Signature Series Motor Oils
Reviewed by Vette71: Great productsBest oils ever. Used for years. Item Reviewed: Signature Series Motor Oils
Reviewed by Jimi: Motor oil magic!This is the best synthetic motor oil I've ever used. My 2007 Toyota Camry V6 sounded and felt smoother than before. That's what 100% synthetic Amsoil does for your vehicle. I will be putting Amsoil on my 2010 Lexus ES 350 as well. Amsoil on my vehicles only. Item Reviewed: Signature Series Motor Oils
Reviewed by Lance: I have been buying this for yearsIts such a good product, it has done me good all these years i will be buying more in the years to come. Item Reviewed: Signature Series Motor Oils
Reviewed by Steve: Great oil!I use this in my racecar and it's the only oil I'll use. Item Reviewed: Signature Series Motor Oils
Reviewed by Bill: Signature Series synthetic 0w20I only use Amsoil full synthetic oil in my vehicles. This includes my motorcycle. Item Reviewed: Signature Series Motor Oils
Reviewed by Dman: Best oil I have used.Holds up very well for changing it out every 10,000 miles. No burn off like other oils. Item Reviewed: Signature Series Motor Oils
Reviewed by Harrison: I will buy your products againSorry haven't got enough run time yet but I changed everything from mobill1 and Harley to your synthetics Item Reviewed: Signature Series Motor Oils
Reviewed by Brad: Top notch synthetic oils !Best oil on the market hands down... tests prove it and the protection speaks for itself! I wish I had switched a long time ago because it would it saved even more life on my engine. 1999 Honda Accord with 250k miles on it and it runs like new! Thanks amsoil! Well worth the extra money because you save it from having to change it once a year! Item Reviewed: Signature Series Motor Oils
Reviewed by None: Best oilI use to do a lot of driving . All my vehicles had 400,000 + miles on them including one Suburu with 505,000 only reason still not driving was not the engine but the rust eating the frame and body due to heavy salt used in winters .. .used the 25,000 oil change 10 -30 signature and 15,000 mi oil change filter . Changed oil and filter every 15,000 mi . Only added Extra half qt to qt at around 13,000 mi. Been a user since 1980's wouldn't use any other oil . Item Reviewed: Signature Series Motor Oils
Reviewed by Joker: OilBest ever, been using for years and have plenty of people switching as well. Great product. Item Reviewed: Signature Series Motor Oils
Reviewed by Mopar16: 0w-40This oil is amazing I use it on my hemi 6.4 and everyone know about the hemi tick but with this oil I don't hear it at all so I love the oil I am sure the tick is still there but the noise is very low. Item Reviewed: Signature Series Motor Oils
Reviewed by Flyer: Saved an engine!I developed an oil leak which when discovered had depleted four of six quarts of amsoil which I believe prevented some serious engine damage. I have used this product in my F-150 Edoboost since 5000 miles and The truck now has 174,000 miles. Can't say enough about this great product! Item Reviewed: Signature Series Motor Oils
Reviewed by DS: Very ImpressiveI'm very impressed with this oil. I thought the gas mileage might go up a little but it went up by over 3 miles per gallon. I've checked it for 4 fillups since the oil change and it actually got a little better. I will be checking it for color change and oil life. It's great so far. Item Reviewed: Signature Series Motor Oils
Reviewed by Jc: YesUse in car and truck. Works great. Item Reviewed: Signature Series Motor Oils
Reviewed by Mr. Preventative: Performs the BestMy truck runs so much better, and oil changes done once a year now. Item Reviewed: Signature Series Motor Oils
Reviewed by LOU: Great product never be without it!Keeps everything running cool and smoothly. My go to..never use anything else. Item Reviewed: Signature Series Motor Oils
Reviewed by John: I trust this product for all my vehiclesMy vehicle engines have lasted a long time and I get better gas mileage to boost. Item Reviewed: Signature Series Motor Oils
Reviewed by Joe P.: Great protection for rideshare driversI am a part time rideshare driver and have averaged over 22,000 miles a year. I go 10,000 miles between oil changes and have almost no burn off or evaporation. Have used Amsoil for 30+ years to protect my vehicles. Great stuff! Item Reviewed: Signature Series Motor Oils
Reviewed by GW: Been using Signature Series Synthetic for many years.I've been using the product for many years and trust Amsoil for all of my equipment - car, truck and all power equipment. Item Reviewed: Signature Series Motor Oils
Reviewed by Popgun: I have been using Amsoil since the mid 80's...... in every vehicle I have owned, new or used, and will continue using Amsoil as long as I have a car! Never had a problem even though I changed the oil annually. One service tech even asked why I was changing the oil since it was so clean! That's Amsoil, that's quality! Item Reviewed: Signature Series Motor Oils
Reviewed by KC: Great Product!As always, Amsoil produces great products for our "fleet' of vehicles ranging from SUVs, motorcycles, and trucks. Customer service is unparalleled. Item Reviewed: Signature Series Motor Oils
Reviewed by Dave: AMSOIL Signature oil 0w-20.AMSOIL 0w-20 Signature fully Synthetic Motor Oil. Been using this oil in my vehicle since I purchased it. Item Reviewed: Signature Series Motor Oils
Reviewed by Bob: Best oil for those that still change their own oilI have used Amsoil in all my equipment for many years. I still enjoy changing my own oil and maintaining all routine maintenance myself. I appreciate being able to to go an entire year without another oil change and doing the work myself. I use this oil in my street rod, full size suv, 4 stroke outboard boat and gearbox, plus all of my outdoor lawn equipment. I also use Amsoil 2 stroke oil in all of my lawn equipment including a 1976 Homelite chain saw that has never been overhauled that still runs very strong. Item Reviewed: Signature Series Motor Oils
Reviewed by Mr. Z: Fast ShippingI received fast shipping on a great product! Thanks Amsoil! Item Reviewed: Signature Series Motor Oils
Reviewed by Golden Eagle: Best Protection for EnginesI have used Amsoil Signature oil in my business car. Today with over 400,000 miles on it.... Still running like new! No other oil even comes close to the protection and value of Amsoil Signature! Item Reviewed: Signature Series Motor Oils
Reviewed by Jeff: Exceptional motor oilMy vehicles run smoother, with less vibration, and are quieter. The also run about 10 degrees cooler than they do with other oils. And, my gas mileage went up about 3 miles per gallon. Item Reviewed: Signature Series Motor Oils
Reviewed by Seabee624: I've been using Amsoil since I bought my first truck in 1986I change my oil once a year roughly 12,500 miles Item Reviewed: Signature Series Motor Oils
Reviewed by Squire: Best oil out there.I Like the throttle response with Signature Series Amsoil ! Item Reviewed: Signature Series Motor Oils
Reviewed by crazy joe: Great productWe use this product in all my Jeep Cherokee Sports 1999, 2001, 2003 Grande Cherokee, and a 2004 Durango SLT 5.7 Hemi. They all run great and have a lot of miles on them. We also have a couple of old race cars and use it in them, if we get them out. We are hard on our cars and use them we are not granny drivers by any means the 2001 Cherokee only has 157,000 on it but we are going to start to use it daily as of tomorrow. the others are all used every day. Item Reviewed: Signature Series Motor Oils
Reviewed by Krzysztof: Perfect oilThis oil last long time and the inside of the engine looks clean and really smooth. Great product and works magic. Thanks Item Reviewed: Signature Series Motor Oils
Reviewed by Whitey: The only oil I use.I believe this to be the best motor oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Amsoil since 1983: Very pleased customerOrder was easy. Shipment was right. Product is great. Customer service was awsome. Item Reviewed: Signature Series Motor Oils
Reviewed by Scott: The product is greatShipping was prompt and everything came in as promised Item Reviewed: Signature Series Motor Oils
Reviewed by Birdman: A customer for Life!Great quality oil and filter - less oil changes and the perfect protection for the engines on my vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by Harley: I will buy this product againI aways use amsoil products after I used this oil in a car of mine that had a ticking valve when it was cold for carbon buildup The Tick went away never came back. Item Reviewed: Signature Series Motor Oils
Reviewed by Rosa: I am very happy with the productIt has been working excellent and we will always recommend this products to our friends and family. Item Reviewed: Signature Series Motor Oils
Reviewed by Dave'sAuto: Smooth and Quiet5.3 engine in my wifes `16 Suburban is smoother and quieter with the Amsoil 0w-20 SS. I was running good oil before, however this one seems even better. Item Reviewed: Signature Series Motor Oils
Reviewed by Rich926: Signature Oil 5W20The absolute best oil I have ever used. Item Reviewed: Signature Series Motor Oils
Reviewed by Grandpappy2002: Great oil, worth the moneyBest oil I've ever used Item Reviewed: Signature Series Motor Oils
Reviewed by Ron: YesIn my truck Item Reviewed: Signature Series Motor Oils
Reviewed by Welderguy: Great Product!My Engine has never ran so smooth! Engine temperature runs slightly cooler as well. I couldn't believe it till I seen it! Want a vehicle to last longer just treat the engine with this oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Greg: Great product for my hemiI use amsoil for all my oil changes to have the best for my hemi/Ram Item Reviewed: Signature Series Motor Oils
Reviewed by Pappy's Performance: Best oil on the market!I researched all the oils and for several years Amsoil is the only oil I use in my personal vechicals and my customer's motorcycles. Item Reviewed: Signature Series Motor Oils
Reviewed by JB: YesBest in class product! Item Reviewed: Signature Series Motor Oils
Reviewed by G-Money: Third Order for this Great Engine OilHave used in 2004 Toyota Sequioa, 2004 Toyota Tundra and 2010 Lexus RX350. This oil does not sound nor feel like any other synthetic I have used in the past, engines just seem to feel more lubricated and ready to perform, even at 10,000 mile changeout intervals, though I know the oil is formulated to go much further than that. Best oil I have been able to find for sheer ratings/high PSI strength...best oil I have ever run period. Item Reviewed: Signature Series Motor Oils
Reviewed by SQUIRE: I've been using the Signature series oil for years nowI LIKE THE WAY AMSOIL PRESERVES MY EQUIPMENT. IT ALSO MAKES THINGS RUN SMOOTH AND POWERFUL THE ROLLERS ON MY OVERHEAD GARAGE DOOR RUN SMOOTH AND EASY WITH THE AMSOIL !0-30 SIGNATURE SERIES OIL! Item Reviewed: Signature Series Motor Oils
Reviewed by C 150: The best money can buyAsk any knowlegable mechanic, they all praise this product. Item Reviewed: Signature Series Motor Oils
Reviewed by Mark: Great productThis I used it my John Deere. I put it in the automatic transaxle. Much quieter now, and faster. Item Reviewed: Signature Series Motor Oils
Reviewed by John: Nice Motor OilReviewing motor oil is a slippery topic. There is no way to determine if there is less wear and tear on the engine, but it looks delicious coming out of the container! Item Reviewed: Signature Series Motor Oils
Reviewed by Ricky: I swear by AMS oilI use it in everything I own Item Reviewed: Signature Series Motor Oils
Reviewed by Rane: 130,000 miles and no issuesI can't say anything bad about this oil. Our 2016 Mazda 6 has had zero issues from the drivetrain. Zero issues with anything actually. I changed the engine oil and trans oil(manual) out as soon as I got the car home with less than 50 miles on it. The only thing I do that's not amsoil is add Liqimoly because the factory oil for our engine requires a high moly content. I change the oil every 15-20k and top off every 3-5k. The engine looks very clean inside the crankcase and under the valve cover. It still runs as smooth as the day we bought it and no leaks at 130K. I also use this oil in my brand new Tacoma TRD off road 4x4. I refused their complimentary free oil changes and stuck with what I know is a higher quality product. Item Reviewed: Signature Series Motor Oils
Reviewed by DudleyDoRight: New Amsoil user.I purchased Amsoil for my 3.6 LFX V6 Camaro. I went about 6k miles and changed the oil in the engine. I sent out a sample to an oil analasys lab and the results came back great. They recommended going 8k miles before changing the oil again because there was still plenty of "life" left. I will continue buying Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Hollywood: Awesome oilMy turbo forester runs good with this oil Item Reviewed: Signature Series Motor Oils
Reviewed by D.J.: Amsoil Review Great ProductGreat Product , Fast service, good price Item Reviewed: Signature Series Motor Oils
Reviewed by Moose Man: Best oil ever!!!I use this in all my vehicles. Bought a 2006 Honda Civic new for my son. He still uses it and it has 350,000 Kms and the engine still runs great. Always use AmsOil filters Item Reviewed: Signature Series Motor Oils
Reviewed by Dan the man: Great productI've bought this oil after watching YouTube videos of it beating out the other oils people buy. I usually do royal purple but not anymore. This oil cause less wear and tear and my car runs more smoothly. The best part is it's 100% synthetic. Royal Purple isn't. Great product. Definitely going to buy again. Item Reviewed: Signature Series Motor Oils
Reviewed by wayno bam bam: 200k on '07 PriusJust sold my 07 Prius with 200K. Used 1 quart in 19K as topping oil. Never had the head or covers off, changed plugs twice. Item Reviewed: Signature Series Motor Oils
Reviewed by JAS: Best OilI have been using Amsoil for 25 years and never had engine issues. Great products! Item Reviewed: Signature Series Motor Oils
Reviewed by RonV: Great Stuff!!I have been using Amsoil for over 30 years and think it is the greatest. I use it in all my cars, mower, and mix the marine oil with gas to run in my chain saw, weed,eater, and hedge trimmer. I recommend Amsoil to everyone who will listen. Item Reviewed: Signature Series Motor Oils
Reviewed by Aaron: Only oil I trustDoesn't burn off like other oils this stuff is amazing Item Reviewed: Signature Series Motor Oils
Reviewed by rolo the mech: heve used enough to know it's valueuse in all personal vehicles and equipment Item Reviewed: Signature Series Motor Oils
Reviewed by Uncle T: Best oil everI first started using Amsoil 10w40 in 2015 in VTX 1800. Then in 2017 started using oil in 2014 Patriot. Cooler, quieter and better mileage. Longer intervals between changes. Will not use any other oil in any machine I own as long as Amsoil makes it. Item Reviewed: Signature Series Motor Oils
Reviewed by Rick: I keep buying this productI keep buying this product because I now have 379,000 miles on my factory 1.4 turbo GM motor Item Reviewed: Signature Series Motor Oils
Reviewed by Jake's toys: I buy this product very and over againI use Amsoil in all my motors Item Reviewed: Signature Series Motor Oils
Reviewed by Nick P: Great stuffI mean its a really gold Oil and as a memeber you get It for the same price as anything else on the market. How do you go wrong. I got 300k on my car and still going strong because of this stuff. Item Reviewed: Signature Series Motor Oils
Reviewed by kevin: the best of the besti use only Amsoil signature series for the past 20 years. the best lubrication, protection and no gumming. Item Reviewed: Signature Series Motor Oils
Reviewed by carlistilllo: outstanding !!i use only the best oils, and this one is one step ahead of everything ,car runs smooth, cooler and much efficient ,thanks! Item Reviewed: Signature Series Motor Oils
Reviewed by Daddy Plummer: Long Time User (20 years)I use this oil because of extended oil changes .... I change mine Item Reviewed: Signature Series Motor Oils
Reviewed by California Nordahl: 37 Years of UseI have been using AMSOIL in my vehicles for 37 years, for better fuel economy, better engine, transmission, and rear end performance, and much better protection for all vehicle components. I love this new oil upgrade for its protection, particularly against preignition. Pulling a trailer in hot summer weather with a turbo engine makes this kind of protection mandatory. Item Reviewed: Signature Series Motor Oils
Reviewed by ocdpops: Only oil I useHave two 5.7 hemis. One is higher compression with forged pistons( ie: burns a little oil). Oil consumption with Amsoil is 50% of other oils. valve train is noisy on 5.7 hemis. Using Amsoil reduces noise 75- 80%. MPG on both vehicles has increased. Item Reviewed: Signature Series Motor Oils
Reviewed by Steve: Good oil!I've got a Shelby GT350. Voodoo engine is very special, and also very expensive to replace. While I can't 100 percent say amsoil has kept me out of trouble. I've beaten the tar out of the car at the track and barely consumed oil unlike many others. Will continue to use the product on this car! Item Reviewed: Signature Series Motor Oils
Reviewed by USAFVet: Amsoil productsI have used Amsoil products, exclusively, pretty much since I first heard about them back in 1977! Motor oil & filters, trans fluid, differential fluid, grease, MP, YOU NAME IT! I have NEVER had a lubricant-related failure, or wear-out, since! These are simply THE BEST LUBRICANTS MONEY CAN BYE...PERIOD!!! Item Reviewed: Signature Series Motor Oils
Reviewed by Jodster: 442k miles and still going!I have 442,000 miles on my Nissan truck, (original engine) using amsoil 10w30; I change the filter every 6,000 miles, and the oil around 12,000, (usually). In fact, I just had to replace the original (!) valve cover gaskets last fall, after 14 years! Amsoil does the job Item Reviewed: Signature Series Motor Oils
Reviewed by Chuck: Great oilUsing this product in my wife's grand caravan Item Reviewed: Signature Series Motor Oils
Reviewed by KentuckyKen: Best oil for PHEVsI have a 2018 Honda Clarity Plug In Hybrid Electric Vehicle' (PHEV). Most of my driving is local (< 50 miles) and uses the battery only so the gasoline engine can go months at a time without starting. I depend on the superior additives in Amsoil Signature Oil to hold up to the demands that only occasional engine runs with long periods between running places on the oil. With my driving schedule, Honda allows me to go 1 year between oil changes and I wouldn't trust that interval to anything but Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Terryg: Best oil on the market!This oil is absolutely the best product, I've been using Amsoil for more than 30 years and this is without a doubt there best product ever for most cars and trucks Item Reviewed: Signature Series Motor Oils
Reviewed by Collector: Great ProductBest oil on tue market. I run it in all of my vehicles and I don't trade much so they have to last. From motorcycles to cars. Big trucks to small suvs, I trust only AMSOIL. Item Reviewed: Signature Series Motor Oils
Reviewed by CDC: Great productUse to keep from changing oil so often Item Reviewed: Signature Series Motor Oils
Reviewed by Muxdragon: Awesome OilI drive a 2011 Tacoma. I change my oil yearly. I've only used this oil for all the oil changes. After a year, the oil on the dipstick is still gold after 15,000 miles. I do notice that at the year mark it need to be changed. The reason is because when I pour in the new oil the motor runs smoother. Great oil! It does what it says it does. Item Reviewed: Signature Series Motor Oils
Reviewed by jeffro: Excellent product(s)Have a 2006 Rav4 with V6 engine. Been using Amsoil's best oil (Signature 5W-30)and EA filters since the car was almost new. Vehicle now has 233,000 miles on it and does not smoke, burn oil or have any leaks. Still runs as new. Do my own oil/filter changes and do so at approximately every 15,000 miles and/or at least twice a year. The ambient temperatures can easily rise above 90 degrees and the AC is used daily. Do a lot of rural/highway driving and for half the life so far, stop and go city driving. Item Reviewed: Signature Series Motor Oils
Reviewed by DC: great oilswitched to amsoil years ago on a truck with 250000 mi. Item Reviewed: Signature Series Motor Oils
Reviewed by Rubicon owner: I have used this for years in several vehicles.I have been using Signature Series oil in my trucks for years. When it is a new vehicle I switch at its first scheduled oil change. On a used vehicle, soon after purchase. I had a 2001 Silverado 5.3L purchased used with 22000 miles. Switched to Signature Series and drove it to approx. 98000 miles. Gave it to my son who went to around 150,000. Sold it they put about another 10000 on it and sold it again. Last I knew it was rusty but still running strong. As far as I know It has had no major engine work. Item Reviewed: Signature Series Motor Oils
Reviewed by Rich: Amsoil signature seriesMost complete motor oil ever,will never put anything else in my 2017 Chevy Silverado. Item Reviewed: Signature Series Motor Oils
Reviewed by Huck: I use the Signature Series 5W-30 oil at every change.I use the Signature 5W-30 motor oil in my 2014 Hyundai Elantra Sport. I was surprised the first time I changed the Amsoil Signature motor oil as to how dark the oil was when I drained it. Then it hit me that the synthetic oil was cleaning the engine from where previously the engine had only seen a multi-weight oil. One other thing I noticed is the engine temp. shows the motor is running cooler than it did before I started using AMSOIL. Item Reviewed: Signature Series Motor Oils
Reviewed by Chardog: Only product I will useMy family has 4 vehicles and they all have Amsoil in them. I highly recommend using Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Martin: ExcellentI have been running this oil in all my vehicles for several years, and have been very satisfied with the performance of the oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Malcolm: Best oil to date.Loving this oil Item Reviewed: Signature Series Motor Oils
Reviewed by don: great oili use amsoil in my truck, engine,rear end, trans, and my motocycles engine, trans clutch and i totally rely on it. my truck had a howl in the rear end when i would back off on speed after changing the rear end oil to amsoul it stoplped i love amsoil and highly recommend it to all my friends. Item Reviewed: Signature Series Motor Oils
Reviewed by Joe and a Subaru: Loven AmsoilSo fare so good, I put amsoil in my 2016 Subaru impreza and she runs like a champ just like my 06 Chevy Silverado. Item Reviewed: Signature Series Motor Oils
Reviewed by Big Dawg Corvette: Great oil for my race carRun this oil in my 2002 corvette road race car. Dry sump engine, need the best protection. Great oil and has not let me down! Thanks Amsoil! Item Reviewed: Signature Series Motor Oils
Reviewed by Austin: Would by againThis oil exceededs my expectations by far. Before using this oil I would always have a faint ticking noise in my valve train. After using this oil it is so quiet i couldnt belive it. The oil life itslefs last an incredibly amount of time as well. One of my favorite things about amsoil ut leaves behind a small film of oil after u shut down your engine. So when u start back up it still has a small flim to protect your engine intell the oil is pumped up. I use amsoil in ever one of my vehicles Item Reviewed: Signature Series Motor Oils
Reviewed by Ken_FJCruiser: Never CompromiseI trust this oil and the other Amsoil products because they work. I know that the maximum vehicle life and best operating effectiveness come from due diligence in maintaining it properly. There is great comfort in knowing I didn't compromise with the products I used. Keep rolling! Item Reviewed: Signature Series Motor Oils
Reviewed by IndyCarDriver: Love This ProductHave been using this product for about 9 years on both new and used vehicles. With extended mileage, I only change 1X per year. Cars have performed flawlessly. Item Reviewed: Signature Series Motor Oils
Reviewed by jazool: Ultimate ProtectionOur Subaru hemorrhaged out all of it's oil on a trip (16 miles) to our Mechanic. He later called us and asked what type of oil we used. When I told him Amsoil Signature Series, he said "keep using it; you were totally out of oil !!". Using it for 20 years now. Never had an oil related failure. Item Reviewed: Signature Series Motor Oils
Reviewed by Larry: Only Amsoil For MeI use Amsoil in all of my vehicles (4) and I believe that's why they perform and last a long time!!! Item Reviewed: Signature Series Motor Oils
Reviewed by Phil: I will continue to buy this productI have used this product in my 2009 Civic since it was new. Now with 195000 miles It has never been in the shop except for tires and brakes and 100000 mile spark plug change. It still runs like it did when it was new. Item Reviewed: Signature Series Motor Oils
Reviewed by Ramblin Roy: Great productThe SS 0W-20 works awesome! I just wish it were a little cheaper in price, even with the PC, it is still a little bit high in my opinion. However, it is a great 100% synthetic oil. My 2015 Silverado with the 5.3 V8 runs a lot smoother and has more power with this SS oil in my opinion. Item Reviewed: Signature Series Motor Oils
Reviewed by Fender Bender: It doesn't get any better!I've been an Amsoil PC for around 10 years now. I love Amsoil products and so do all my machines! There is no better value for your money. I have never had any engine problems in anything I have poured this liquid gold into. My wife's 2013 Toyota Rav4 loves it! Item Reviewed: Signature Series Motor Oils
Reviewed by BW: I use this product in all of my highway & mountain vehiclesI use Amsoil in all of my vehicles as recommended. We just handed down a 2003 Toyota Matrix with over 200,000 miles on it to our Granddaughter. This car was still of high quality even though it was used daily on dusty and dirty farm roads; as well as highway. I hope she gets another 100,000 miles or more. Item Reviewed: Signature Series Motor Oils
Reviewed by Gene: 5- 20Have used this oil on two of my trucks one has over250000 miles and still going strong. Love this oil,use it in my motorcycle too. Item Reviewed: Signature Series Motor Oils
Reviewed by Gene: I would buy this product againI use it in my car and when I change oil it still has a great consistency Item Reviewed: Signature Series Motor Oils
Reviewed by Floyd: The BestThis oil I use in our 16 Escape, to better protect it's turbo. Living in Wisconsin it can be well below zero in the winter, and what a difference Amsoil synthetic oil makes. Item Reviewed: Signature Series Motor Oils
Reviewed by Herby-Dean: Only the bestNothing but good to say about amsoil products.... they are the best! Item Reviewed: Signature Series Motor Oils
Reviewed by Bigred911s1: Hi quality oilI'm finding this oil looks cleaner and it's viscosity appears to hold up longer than Mobil 1 after the same 10k miles. I will continue to use this oil in my 2016 Mustang GT. 52k miles already and still running strong. Item Reviewed: Signature Series Motor Oils
Reviewed by josh: Great oilI run this oil in my 79 Chevy k10 and change it once a year with a fresh oil filter mid year my speedometer doesn't work so I don't have to worry about changing the oil every 3 months I am really pleased with this product Item Reviewed: Signature Series Motor Oils
Reviewed by Ray: Great ProductsI have been using these products for more almost 30 years. I trust them. Item Reviewed: Signature Series Motor Oils
Reviewed by sparky: Great product, loyal userI have been using Amsoil for at least ten (10) years, it's a life, and engine saver! Item Reviewed: Signature Series Motor Oils
Reviewed by Rob C: Been using signature series for almost 2 decadesI've used the Signature Series oil in everything from a well-modified 99 Neon that routinely saw 8k rpm to my wife's turbocharged Ford Transit that takes our kids everywhere, and it's never let us down. I would conservatively put the amount of mileage we have on this oil over the last 20 years at 350k miles, and that's a lot of saved money in oil changes by using Amsoil's extended change intervals. I've never had a problem with any engine having oil loss issues, either, no matter how hard I ran the motor. Item Reviewed: Signature Series Motor Oils
Reviewed by Todd: My absolute favorite oil!Works great in my wife's Buick Verano. I also use the 5-30 and 10-30 signature series in our GM pickups. My 2003 Silverado has 293,400 miles and doesn't burn a drop of oil! Bought it with 90k on it and has had all Amsoil fluids in it ever since. Item Reviewed: Signature Series Motor Oils
Reviewed by Bradley: Great product for any Chevy LSThis oil works great with E85... Best I have found from the major brands. Item Reviewed: Signature Series Motor Oils
Reviewed by Tom: Amsoil is some Good StuffI used to be very sceptical of synthetic oil so I decided to try it in my company truck(not my company). The truck ran up 200,000 miles and still running strong with minimal oil consumpsion. My wife has a growing cleaning business and I do the maintenance on the cars. Using Amsoil I went from 5,000 mile changes to 15,000 miles using the Signature Series 5W-30. Item Reviewed: Signature Series Motor Oils
Reviewed by Jim: This is the only product I will use in any of my vehiclesWhen I buy any vehicle, I change to Amsoil Signature Series the first oil change and use nothing else thereafter. As a volunteer fireman, my vehicles are subject to being run at high speed while cold. Signature Series provides outstanding protection. Some have over 200,000 miles on them and none use oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Tim: I want the bestModern GDI engines require excellent oil to stay clean and handle everyday extremes. If you are using your cars maintenance indicator you might be exceeding other oils capabilities I know signature series gives me the best I can get Item Reviewed: Signature Series Motor Oils
Reviewed by Goose: The Best Protection Money Can BuyI run this Signature Series 5w-30 in nearly all my vehicles. Typically I see a 10% increase in gas mileage ( over an engine ran on conventional mineral oils ) on the interstate no matter what size engine. In one recent event, I blew a head gasket on a Quad 4 engine yet drove the car for about 10 miles. Observing the chocolate milk colored oil, the engine was not damaged as it was protected by Amsoil Signature Series lubricant. Item Reviewed: Signature Series Motor Oils
Reviewed by JR: The best cost moreYes Amsoil oils are more costly that many Item Reviewed: Signature Series Motor Oils
Reviewed by Ian: Only the Best for my EnginesI use amsoil don all my vehicles Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: Best on the marketI have used only Amsoil in my 2005 Toyota pickup. Item Reviewed: Signature Series Motor Oils
Reviewed by Dink: AmsoilHi. I am totally sold on Amsoil ! Superb protection. Awesome lubrication. Even in a little engine overheating, it still protects ! I reccomend it to the world ! Nothing beats it ! Nothing ! Item Reviewed: Signature Series Motor Oils
Reviewed by Pat: I will continue to use AmsoilI can't think of anything negative to say Item Reviewed: Signature Series Motor Oils
Reviewed by Chieftom: YesIn my personal auto's Item Reviewed: Signature Series Motor Oils
Reviewed by Pistol: I will buy this product again and againMade the engine run so quiet Item Reviewed: Signature Series Motor Oils
Reviewed by Dayjoe: I haven't found a better oil than amsoil signature seriesI don't remember how I got started with amsoil oil. I use it in all my motors. The 5w 30 is the one I use in my 2003 Chevy pickup. It was making a loud ticking noise before I started using amsoil in it. As soon as I started using it I could tell a noticeable difference and smoothness and the ticking went away so I'm very happy. Item Reviewed: Signature Series Motor Oils
Reviewed by Kevin: I would by againBest oil on the market. Item Reviewed: Signature Series Motor Oils
Reviewed by Virped: It's the best choice for your engine!It goes in my 3.6VVT and my 5.4 2V and does wonders for engine noise, oil change intervals, and most of all performance! It doesn't matter if it's a modern engine or not so modern engine, it Works! Item Reviewed: Signature Series Motor Oils
Reviewed by Trouty: Best synthetic availableYou can put any oil in a new engine and call it good. I run my cars 200k+ that's when oil matters. Amsoil cools,cleans, seals and lubricates better than anything I have used and I have tried them all. Item Reviewed: Signature Series Motor Oils
Reviewed by Brandon: Best oil, no competitionI drive for work 1,000 miles plus a week, I use Amsoil in my car along with my wife's... I have right at 300,000 on a 2012 Kia Soul and the motor is just as good and clean as the day I purchased. I save money as well... using any other other brand is crazy Item Reviewed: Signature Series Motor Oils
Reviewed by Guardian: Very good product!!!It's the best hands down! Some people think it's all the same ! There wrong! 25,000 miles you can not bet it. Item Reviewed: Signature Series Motor Oils
Reviewed by Larry: The best oil on the marketI have used AmsOil exclusively for over 20 years. It's the best there is. My truck loves it. Item Reviewed: Signature Series Motor Oils
Reviewed by Jerry: I plan to continue usingI use in my 1999 Corvette because I like to use the best, and also in my 2016 Dodge pickup. Item Reviewed: Signature Series Motor Oils
Reviewed by Paul: I would buy againI use this every 5k miles. The car runs smoother and quiter than my previous oil changes. It doesn't lose it's slickness. I'm overall satisfied with this oil. Item Reviewed: Signature Series Motor Oils
Reviewed by cheyfinn: yes, i have been using AMSOIL sence 1985cars' trucks' & motorcycle, lawn mower, snow blower Item Reviewed: Signature Series Motor Oils
Reviewed by Brad: Best oil i have ever usedThis is the best oil I have ever used in my Ram 1500. Item Reviewed: Signature Series Motor Oils
Reviewed by Chris: Worth every pennyFirst thing I noticed right away was how it make an already smooth engine even smoother and quieter. I've always used Mobil 1 advanced 15k oil and have heard nothing but great things about Amsoil. A co worker of mine had a teacher in tech school who used to rebuild his engine every year after racing season. He switched to Amsoil and hasn't had to rebuild it in 5 years. As soon as I heard that I was sold. If you want the best Amsoil is it. Item Reviewed: Signature Series Motor Oils
Reviewed by Road runner: No problemsI have been using this product since vehicle was new and have had no issues with my vehicle. Engine runs great and strong and I change about every 15K vice 25K as put a lot of miles on this vehicle. Item Reviewed: Signature Series Motor Oils
Reviewed by B: Always useI love this brand of oil and been using it for the past yr on mustang. Item Reviewed: Signature Series Motor Oils
Reviewed by The Capt: Peace of mindI have used this oil on my cars, trucks, and sedans. Never balk at the cost, knowing darn well I'm getting what I pay for. Less oil changes, frees up time, less waste, and superior protection. Item Reviewed: Signature Series Motor Oils
Reviewed by Sam: Great oilLast truck had 175K and never used a drop of oil. Change oil, run 15-20K and still full. Item Reviewed: Signature Series Motor Oils
Reviewed by Watercooled: Smooth OperationAfter breaking in our two new 2017 Mustang GTs, performed oil/filter changes on both. The two things I noticed was quieter engine operations and a small increase in oil pressure. The engines also ran smoother than before. Overall, I'm very satisfied with the notable differences I've experienced. Item Reviewed: Signature Series Motor Oils
Reviewed by Mark: The Good StuffBest Around enough said Item Reviewed: Signature Series Motor Oils
Reviewed by Cole: The oil to use for vehicles you plan to keepI have been using this oil in my 02 siverado and 02 suburban since 04. 297k on the truck and 317k on the sub. Oil is changed once per year, have had 32k in one year on the truck. Engines still run great and have no oil consumption, increased fuel mileage seen on both. I don't use anything else Item Reviewed: Signature Series Motor Oils
Reviewed by dodgehunter: I really like itI used this on my 2002 Tahoe the oil at 3000 miles looks like new yet. In the very cold weather here in ND it start right up. Vary pleased with oil. I will be doing all the fluids in my Tahoe with Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by D.K.: OnlyUnless I can't afford it Amsoil will be the only oil I use. It is very good and while some people say it is more expensive, they are usually comparing it to cheap oil, it is worth every penny. Item Reviewed: Signature Series Motor Oils
Reviewed by Dudewayne: Great oil, maybe the best you can buyBeen using this oil for several years now and get great results from it Item Reviewed: Signature Series Motor Oils
Reviewed by Snarkman: Beyond expectations!Been using Amsoil for decades, in everything I drive. Have over 2 million miles in a Semi with Amsoil. Increased life of every component . I pushed it to the limit , never failed. And I push hard .... Item Reviewed: Signature Series Motor Oils
Reviewed by Carlitos: I would recommend using AmsoilI like taking care of my cars that's why I use Amsiol Item Reviewed: Signature Series Motor Oils
Reviewed by JW: Best Bang for your BuckI've been using Amsoil since 1998. I've had to replace the intake manifold gasket on past pickups, when the mechanic ask me if I cleaned the inside of the engine before bringing it in I said no, I use Amsoil full synthetic. He said well the inside of the engine had absolutely no carbon buildup. He said that was the cleanest engine he had ever seen that had 110,000 miles on it. From that day forward he too was a Amsoil customer. Item Reviewed: Signature Series Motor Oils
Reviewed by D Grim: So far so goodI drive a 2009 HHR with a 2.0 NA 4 cylinder engine approx. 100 miles a day and have 160,000 plus for mileage. Economy comes in many forms in this case fuel, oil and tires are my biggest expenses and ones that I can somewhat control. We had a cold spell not to long ago of real temps -25 and colder. The HHR still has the original battery and with the Signature Series 5w/30 it cranked right up with out a problem. Next step is to submit an oil sample same time as the factory algorithm says to change oil. Item Reviewed: Signature Series Motor Oils
Reviewed by steve: When you are the best the hech with the rest.The wear scar test results verify my faith in your products. combined with the best chemical package to keep my three Diesels & 2 Gasoline motors clean. I like the 25,000 mile products, saves time. thanks for the extra engineering it took for development of these products. Item Reviewed: Signature Series Motor Oils
Reviewed by Rayford: Best oil on the Planet !Actually get better fuel mileage , performance and reliability from using Amsoil . Why not use the best in these expensive vehicular . Item Reviewed: Signature Series Motor Oils
Reviewed by Upon2wheelsBill: Non deceptive Hi quality productsYour products are easier to compare because the specific facts are up front and easy to understand and are a great value. Item Reviewed: Signature Series Motor Oils
Reviewed by Daltonjc: Great OilI use Amsoil in all my vehicles and equipment. I would recommend it to anyone. Item Reviewed: Signature Series Motor Oils
Reviewed by RabbitJackson: 2009 Ford F150The truck runs great and uses no oil at 130,000 miles Item Reviewed: Signature Series Motor Oils
Reviewed by Macs: A++ lubricantThis oil does what they claim it can do. I normally try to change my oil at around 12000 miles, but sometimes if I'm too busy it goes much longer. At the last oil change, I changed it at 25000 miles. No problems whatsoever. The dipstick oil level was still normal after a year of use. The Signature series oils are worth the extra money. I also use the diesel oil in my 06 Duramax truck. It's about to hit 400,000 miles and not a single problem. Item Reviewed: Signature Series Motor Oils
Reviewed by Tyrone: AmazingNow this may sound negative but it's a positive. I bought the 10W 30 for my 1998 Jeep TJ 2.5 with 250,000 miles on it. Amzoil really cleaned and lubricated my engine really well. I dont recommend going to a synthetic motor oil if you have high milage and you did not you synthetic oil prior to because this oil cleaned my engine up but I developed a leak. But in retrospect I'm am going to use only Amzoil in it when I rebuild the engine. Went back to Dyno oil for the time being. Item Reviewed: Signature Series Motor Oils
Reviewed by dave: I don't anything elsehave used Amsoil for the last 15 yrs. never any complaint with it the only way I get my lawn tractor with the snowblower started in the winter starts every time Item Reviewed: Signature Series Motor Oils
Reviewed by Bobby: Love this oil!Using this oil in 1950 Chevy truck with 2004 LR4 4.8L engine. Starts and protects from below freezing to 90+ in summer with constant oil pressure. Engine looks new inside. Item Reviewed: Signature Series Motor Oils
Reviewed by Tom: This is the only product I use in My vehicles.I have changed both vehicles over to Amsoil in the engines and the differentials,transfer case and transmission on My pickup and will soon put in Amsoil coolant. Item Reviewed: Signature Series Motor Oils
Reviewed by Lar: Nothing but the bestAs far as I am concerned Amsoil is simply the best for all of their products Item Reviewed: Signature Series Motor Oils
Reviewed by Tom: Amsoil fluidsI have used Amsoil 0w 30 in my 1998 Corvette and now I have 213000 miles on it and there are no unusual engine noises. I change my oil once a year. I have three boats 2 Corvettes,1SUV and a motorcycle all use Amsoil products. I virtually have had no powertrain problems. I use nothing but Amsoil and will continue to do so. I appreciate Amsoil technical papers as they show the science behind these outstanding fluids and are useful to convince others of the merits of Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Zed: Best engine oil, period.Excellent product and protection. After doing much research will only buy this product to protect my classic sports car, and daily driver. Item Reviewed: Signature Series Motor Oils
Reviewed by Tom: Amazing oilLong life. Engine oil stays clean. Item Reviewed: Signature Series Motor Oils
Reviewed by The Doc: Never a regretI have been using Amsoil in my vehicles since 1986. After having to change a timing chain in an earlier vehicle...it was clear ( internally ) how good Amsoil actually is. The chaincase was as clean as if it was just made. That vehicle continued on to + 260,000km with no oil leaks or other loss. Item Reviewed: Signature Series Motor Oils
Reviewed by flight: Best oilI love all AMSOIL products Item Reviewed: Signature Series Motor Oils
Reviewed by Rusty: Best oil you me or anyone else can buy.I use Amsoil in all my vehicles, and I have many. From my Shelby GT 500 to my ATV and lawn mower. Best oil you can buy! Item Reviewed: Signature Series Motor Oils
Reviewed by Reno P: The Best OilBeen using Amsoil Signature Series 5w20 for over 18 years and have been extremely happy with it. I go 15000 miles between changes and never use more than a half quart between changes. It's the BEST. Item Reviewed: Signature Series Motor Oils
Reviewed by don't use one: Always satisfied with AmsoilI use this in both of my vehicles; one specs 5W-20, the other 0W-20. It gets down to -15 degrees where I live in upstate NY and I depend on Amsoil to provide effective lubrication at temperatures where other oils struggle to perform. I generally put over 250,000 miles on each vehicle, and have never had one consume any Amsoil. Totally satisfied. Item Reviewed: Signature Series Motor Oils
Reviewed by axecut: Best oil periodI have to use the best oil. The cost of not using Amsoil will put me out of business Item Reviewed: Signature Series Motor Oils
Reviewed by jb: nothing but thisI've used this oil in my vehicles for at least 10 years and they have performed as promised.....also haven't had any leaks from the engine ....wouldn't change! Item Reviewed: Signature Series Motor Oils
Reviewed by Trump2020: Best oil on the marketThis is by far, the best product on the market. Item Reviewed: Signature Series Motor Oils
Reviewed by rblilly: Best Oil EverI do 10k mile oil changes per Toyota, but this oil comes out still clean, not even black. I have no doubt I could use it up to 25k miles. Item Reviewed: Signature Series Motor Oils
Reviewed by Chris: 100% trust in all Amsoil productsEvery oil change gets Amsoil Item Reviewed: Signature Series Motor Oils
Reviewed by Jake: Engine started when -34FMy 16.5 year old truck still started in the cold Iowa winter when plenty of other vehicles even newer ones wouldn't. Have to give credit to good synthetic oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Jaymoe67: Best money can buy.Extended drain intervals, combined with my bypass filter, I'd drive this thing to the moon if I could figure out how to get it off the ground!! Item Reviewed: Signature Series Motor Oils
Reviewed by Healey: Good fuel mileageGood cold weather starts Item Reviewed: Signature Series Motor Oils
Reviewed by Whzone: Feel the powermade a grate difference engine is quiet with a 10% better on gas can't wait for my next oil change Item Reviewed: Signature Series Motor Oils
Reviewed by Thomas: Yes I would buy this product again and againI've used this product on my 2014 Jeep Wrangler, I love this oil been using it awhile with no issues what ever Item Reviewed: Signature Series Motor Oils
Reviewed by Travis: 10/1007 FJ cruiser with 150k miles, as soon as I dropped this stuff in, lifter rattle was gone Item Reviewed: Signature Series Motor Oils
Reviewed by Rosopower: Good for meHard To start very cold day Item Reviewed: Signature Series Motor Oils
Reviewed by Cliff: Oil lubricationI use Amsoil oil, and fluids in all of my seven vehicles, from bumper to bumper, witch has cut way down on repair, down time and oil consumption.. Item Reviewed: Signature Series Motor Oils
Reviewed by navret02: My OilThis oil really makes me feel safe knowing the protection it gives! Item Reviewed: Signature Series Motor Oils
Reviewed by L. Barr: 100% synthetic all the wayBest form of lubrication for any automobile in my opinion. Item Reviewed: Signature Series Motor Oils
Reviewed by L. Barr: Only prdOnly product for my cars. Item Reviewed: Signature Series Motor Oils
Reviewed by Chris: The only oil I trustI use this in my Ram Rebel 1500 and it keeps the truck running smooth. Item Reviewed: Signature Series Motor Oils
Reviewed by Dan: I have been using this product for over 15 yearsI live a very cold climate. Temps sometimes get down to -30F with wind chils to -50 or more. My vehicles sit out side all year. Item Reviewed: Signature Series Motor Oils
Reviewed by Pink MG: Nothing but the Best for my RidesI use AMSOIL signature series in my new Ford F-150 because the protection is great, the change intervals can be extended if necessary without lubrication properties breaking down. It conveniently shows up at my door via free shipping as a preferred customer. Item Reviewed: Signature Series Motor Oils
Reviewed by drm: 10+ Year Customer -This is my first round of 0W-20 Signature Series for a 2015 Suburban as well as a 2016 Toyota. Paired with AMSOIL EA Filters, I trust the recommendations of the vendor. I've never had an issue whatsoever. Oil consumption using Signature Series 5W-30 on previous vehicles with over of 180K and 207K miles was ZERO. I loved the cold weather start and 1x/year oil changes (avg 17K miles/year). Item Reviewed: Signature Series Motor Oils
Reviewed by PDFAMILYMAN: I won't buy anything else5W20 is for my 2010 Ford Ranger. I run it hard, and the oil does it's job flawlessly. I use AMSOIL on all 5 of my vehicles. I won't buy anything else but AMSOIL. Item Reviewed: Signature Series Motor Oils
Reviewed by Johnny's machines: Keeps my '98 Subaru and my customers' generators happyI use Signature Series 5W-30 in my '98 Subaru (138,000 miles), and it couldn't be happier. Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: Dedicated UserAmsoil got my business in 1983 when we were running two stroke outboard engines at very high RPM's in a racing format. After one season putting the engine through these conditions we would rebuild the engine. After the year was up the cylinders still had the hone polishing marks visible to the eye on the cylinders. Every gas or diesel engine I have owned since that day runs on Amsoil and only Amsoil. Why would I try anything else. The extended run time only makes it a better product as far as price. You can get this quality at or near the same price as just oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Jeff: Works great in every thingI have been using this amsoil in my Jeep JK 2017 since new, and it seems to be preforming well I also have it in front and rear differential. Item Reviewed: Signature Series Motor Oils
Reviewed by C' DAWG: Won't use anything but AMSOIL!Have been using AMSOIL products 4 more than 20yrs. No bone 2 pick. No vehicle I've owned has used oil, excellent performance. Engines, transmissions, manual & automatics, & live drive axles! No problems ever! I will only use AMSIOL! THANX ABUNCH AMSIOL! Item Reviewed: Signature Series Motor Oils
Reviewed by Dave: Great productI have been using high mileage synthetic oil for the last 5 years. When i got my emission chech the technician was confused, he said , ' the engine is running so clean, its like purifying the air' ! Item Reviewed: Signature Series Motor Oils
Reviewed by KNC: I would buy this product again.I have used this product for 16 years with excellent results. (All around good oil analysis, much lower cost, time saved.) I recommend this oil whenever possible. Item Reviewed: Signature Series Motor Oils
Reviewed by Willy: 20 year user.Great as usual. Item Reviewed: Signature Series Motor Oils
Reviewed by Yogi: Sig series 5w30I have used this in a few autos as well as a 4 cycle toro, superb engine protection, second to none cold weather starting as well as lower operating temps in the hottest days of summer. Very highly recommended! ! Item Reviewed: Signature Series Motor Oils
Reviewed by Mr. B: Liquid GoldThis Amsoil Signature Series engine oil is the best I've used. Item Reviewed: Signature Series Motor Oils
Reviewed by Old guy: Best oil availableMy Ranger has 210,300 miles. All original engine except fuel pump. Runs great. Amsoil in engine and tranny since purchase. Item Reviewed: Signature Series Motor Oils
Reviewed by Dylan T: Great oil, great service!I like to keep my car in tip top shape, so I use amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by bogator 2: Best product I have found..A friend of mine has been using this oil for many years and finally talked me into trying it, I have always used synthetic oil but decided to give this one a try, love it.. Item Reviewed: Signature Series Motor Oils
Reviewed by Vette: Signature oil use in 06 vette and 10 GMC 1500Used for years #1 Item Reviewed: Signature Series Motor Oils
Reviewed by John: The best oil on the marketAmsoil Signature oil is the very best oil on the market and I use it in all of my vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by Al: Life time userThis is another product I've been using since it's introduction paired with the EA filters. They make a great combination for protection Item Reviewed: Signature Series Motor Oils
Reviewed by Joe: Excellent oilI have been running this oil in my Silverado and my Chevy SS and this is by far the best oil you can use. Now I still change my oil based upon the intervals the car tells me but the protection you get can't be beat. My oil analysis have come back excellent! Item Reviewed: Signature Series Motor Oils
Reviewed by Gregthecarman: Great OilUse this in my 2016 Chevy SS, and in my wife's Ecoboost Flex. It minimizes oil use and improves mileage. Was using Mobil 1, switched to Amsoil (after free dealer oil changes ran out) and oil stays clean longer and mileage improved about .5 mpg in both cars. This is year over year, not tank to tank... Both cars rarely see the highway nowadays (both wife and I switched to jobs close to home so side streets to and from work it is)...mpg's going from 14 to 14.5 doesn't sound like much, but it is something! Item Reviewed: Signature Series Motor Oils
Reviewed by Fisherman: The bestI bought a n oil change for a friendgreat product Item Reviewed: Signature Series Motor Oils
Reviewed by 2018 Accord: 9k miles so far so good..Best oil I have used so far. 9k miles on it and oil is still good. Item Reviewed: Signature Series Motor Oils
Reviewed by ANGLICO: Outstanding product.I used the Signature Series oil on my 1992 Land Curiser with a 3FE inline 6 cylinder motor with 230,000 miles; I replaced the oil filter as well. Item Reviewed: Signature Series Motor Oils
Reviewed by MR.HAPPY: Well worth the money!Feel better engine performance,also the mix of higher octane of gas helps also,love that it limits me to one oil change per year depending on more driving or less. Item Reviewed: Signature Series Motor Oils
Reviewed by Berky: No one makes betterAmsoil is the only oil company that I've ever been able to provide 3rd party testing documentation against other synthetic oils back when no other synthetic manufacturer would provide that sort of information. I switched from Royal Purple to Amsoil when my father recommended them. I asked them to provide documentation that they were the superior product and I would switch. They did and I've been a loyal customer for over a decade now. Item Reviewed: Signature Series Motor Oils
Reviewed by Miles: The only thing I use.Bought to use in a 2018 Honda Accord 2.0 turbo as the stock oil was burning up and leaving black soot all over the back of my car. The amsoil doesn't do that and now I feel confident about my car not blowing up from lack of lubrication and costing me a ton on money to fix. Just wish they sold it in a 5 quart jug cause having to buy a gallon and then a separate jug is a pain and the individual quarts aren't cheap. Item Reviewed: Signature Series Motor Oils
Reviewed by Mike: Love this stuffThis Oil is Great. Always Recommend this to others. Item Reviewed: Signature Series Motor Oils
Reviewed by Bkrguy: I'm convinced!!Finally tried Amsoil. I put it in my 2013 Cadillac and noticed an instant difference. Smoother idle. Smoother acceleration. Increase in fuel mileage. I will be using Amsoil from now on in all vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by Mike: Best oil ever used.I changed to Amsoil in 2014.I had a new Chevy truck and by changing to Amsoil 0-20 increased MPG by 1.5 per gallon. It worked great for 75,000 miles. Traded trucks for a 2017 Chevy and changed with Amsoil the first oil change. Just great oil. I also use Amsoil 20-50 in my Harley Davidson which runs cooler than any other oil that I have tried. I run the 20-50 Amsoil dirt bike oil in my 2015 YZ250FX works great. I recommend Amsoil to all my friends. Amsoil has never let me down. Item Reviewed: Signature Series Motor Oils
Reviewed by Mike: I would buy this product againI use Amsoil in all my vehicles, 2015 Ford Explorer, 2005 F250 super duty, 2016 GL1800 Goldwing, & 2008 Ford Taurus, It's a super high grrade of oil and I had a 1996 Chevrolet truck 5.7L that i had over 250,000 miles and had pulled the valve covers and it looked as clean as if I had just rebuilt the engine ! Item Reviewed: Signature Series Motor Oils
Reviewed by Jackal: Best protection and long drain oilBeen using and oil puducts for years it's by far the best lubricant in the industry! Item Reviewed: Signature Series Motor Oils
Reviewed by Dan: Absolute BestYou cannot find a better oil in America than Amsoil. Read the test data and all the reviews. I was always taught to do research on products to find the best. Thats what I did. AMSOIL is the best! Item Reviewed: Signature Series Motor Oils
Reviewed by GarryW: AmsoilI have been using AMSOIL Oil for a number of years. I have 340,600 miles on a 2003 SVT Focus and have been very pleased with how AMSOIL OIL has protected the engine. Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: Signature Series 5w-30I have been using amsoil 5w-30 on my 2004 range rover hse and 2008 range rover hse for almost 15 yrs now and these oil brings back old cars back to life instantly from fuel efficiency to engine fluidity. Engine feels like new. I change oil from 6-8 months or 7500 miles. Item Reviewed: Signature Series Motor Oils
Reviewed by Dave in CO: Great oilLove the performance of my motorcycles w this oil. Item Reviewed: Signature Series Motor Oils
Reviewed by John: Great productUsed signature 10-30 synthetic in my 2002 sequoia and drove almost 15,000 miles before changing the oil and filter. I sent a sample of the waste oil to a lab for analysis. The oil was good, still usable, with no traces of problems. Item Reviewed: Signature Series Motor Oils
Reviewed by Gerry: Best oil for gasoline engine.I've been using Amsoil for almost 20 years, my 1999 GMC Yukon Denali, 219,000 miles, and 2008 Mitsubishi Outlander SE, 221,000 miles using 0w30 Signature Series and both still going strong, and now a 2016 GMC Canyon Diesel truck using the 5w30 European Formula, Highly Reliable Product in my book. Item Reviewed: Signature Series Motor Oils
Reviewed by Rustdoc: Oil ChangeI use Amsoil in all of my vehicles. I have found it saves fuel and makes my engines run much smoother and cooler. I have proved the use to many friends with my Harley's showing them how ell they perform also. Item Reviewed: Signature Series Motor Oils
Reviewed by Tony D: This is the only oil I would use againMotor run smoother get better gas mileage and change the oil less Oil still looks great when it comes out Item Reviewed: Signature Series Motor Oils
Reviewed by Dave: Preaching to the choirHave been using Amsoil everywhere possible, don't have to ask twice. Item Reviewed: Signature Series Motor Oils
Reviewed by Rick: Facts are facts. It is simply superior oil.The third party tests only depict the facts. But I have many years and many vehicles that only used Amsoil. I appreciate that Amsoil offers OEM and other options. That's awesome. But I've always gone with the Signature Series oils. I keep things as simple as I can. I don't want anything but the best, and I don't want to have to second guess engine protection. A full year (repeated years, one is a 13 yo Focus I bought new), that has never been more than a half a quart below full at its annual oil change. ??? Why scrimp on protection when I'm saving money and producing much less recycle oil, AND the car runs awesome after all these years? Item Reviewed: Signature Series Motor Oils
Reviewed by Mobilemotormedic: The best oil and filter out there!I switched from conventional oils and filters back in 2012 and its been the best decision I've made concerning lubricants. Item Reviewed: Signature Series Motor Oils
Reviewed by Mr. Bob: Top Tier OilI have used this since the first oil change in my car that I bought new in 2016. Newer vehicles call for a 0W-20 oil. With that thinner weight oil I am concerned about wear protection. Looking at independent test lab results of Amsoil 0W-20 oil I see that it does better than other oils and passes the tests with ease. My car also has variable valve timing which can be vulnerable to sludge buildup. A clean synthetic oil is a must and the Amsoil additive package fights sludge better than others. We get easier cold weather starts and slightly better mpg too. Spendy but good. Item Reviewed: Signature Series Motor Oils
Reviewed by Stan: ExcellentI believe that Amsoil is the best motor oil that you can buy. Item Reviewed: Signature Series Motor Oils
Reviewed by BH: The only oil I useKeeps my Subaru DIT engine running smooth. I wouldn't put anything else into a turbo charged engine. Item Reviewed: Signature Series Motor Oils
Reviewed by Coyote: PerfectGreat product Item Reviewed: Signature Series Motor Oils
Reviewed by shotz: Good oilOil seems to work very well . This is the second oil change with it - so we'll see how it goes from here Item Reviewed: Signature Series Motor Oils
Reviewed by Eric: AmsoilI have used Amsoil forever. I dont trust any other oil in my vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by Charlie: I will definitely buy this product again!I really have enjoyed the switch to synthetic, I was super pumped to open up my kit in the mail. Item Reviewed: Signature Series Motor Oils
Reviewed by Rond: ProductsBar none, Amziol products are the absolute best you can buy! For everything you own, farm, lawn and garden , cars, trucks Item Reviewed: Signature Series Motor Oils
Reviewed by Subaru man: Best oil everJust turned 120,000 miles and the engine is very quiet and runs like new. Item Reviewed: Signature Series Motor Oils
Reviewed by Wrangss: Sig-series 5w20Excellent engine protection with the long term performance provided by Amsoil. Consistently better mileage than any other lubrication product. Would recommend to anyone wanting the absolute best in engine protection and lubrication. Item Reviewed: Signature Series Motor Oils
Reviewed by Jeff: Only oil I'll ever useUse this in my 2011 Camry with 250k miles since new changing it every 25k miles Item Reviewed: Signature Series Motor Oils
Reviewed by DM: 396K km and running wellMy go to oil for 05 and 10 Impala. Used Amsoil since buying the cars with approx 60,000 km on each. 40,000 km oil changes within 12 months with a filter change at around the 20K km mark. I had 345K on the 10 Impala when the transmission gave out - motor was strong. The 05 is still running well with over 395K kms. Has to have something to do with good quality oil. Item Reviewed: Signature Series Motor Oils
Reviewed by J. Rasmussen: Best!I only use Amsoil. Wouldn't waste my time, money or vehicles on anything else. Item Reviewed: Signature Series Motor Oils
Reviewed by Josh: Best ProtectionI have used this for a few years now and has provided the best protection out of all the oils out there for me. Item Reviewed: Signature Series Motor Oils
Reviewed by Green Dragon: satisfied userMy '14 Outback V6 requires 5W-30 I have used Amsoil every 5,000 mile or 6 months to meet warranty requirements since my first oil change at 1,000 miles in 2014. At 50,000 miles the V6 still hums like a sewing machine Item Reviewed: Signature Series Motor Oils
Reviewed by Green Dragon: Well satisfied with a good productWhen I purchased my 2014 Tundra, I asked the dealership service writer I have known for 25 years for a recommendation regarding motor oil. He suggested Amsoil. I have been using Amsoil in my Tundra since October '13; I also use Amsoil in my Highlander, my wife's Camry, my Honda lawn mower, and in my John Deere Diesel garden tractor. So far, everything still runs like new. Item Reviewed: Signature Series Motor Oils
Reviewed by Brad: Great oilI run Amsoil in my truck and snowmobile. Item Reviewed: Signature Series Motor Oils
Reviewed by Eric: This oil brings out the powerMy car runs way better and bring out lots of power Item Reviewed: Signature Series Motor Oils
Reviewed by Jim: Awesome OilSignature Series oil is unbelievable. I have had multiple vehicles with two hundred to three hundred twenty-five thousand miles on them and Amsoil keep clean like new. I also have 22 and 38 year old tractors that use no oil. Item Reviewed: Signature Series Motor Oils
Reviewed by JP: All goodNever in doubt... Item Reviewed: Signature Series Motor Oils
Reviewed by Leaper: I would be this product againHands down the best oil I've ever used in all my trucks and suvs Item Reviewed: Signature Series Motor Oils
Reviewed by Yan5366: Best oil everMy bmw 328 run super great ... incredible in cold temperature....thanks Item Reviewed: Signature Series Motor Oils
Reviewed by Grumpy Too: I would buy Amsoil time after time because I want the best!I only want the premium best for my new Camaro SS-That is Amsoil! Item Reviewed: Signature Series Motor Oils
Reviewed by G-Train: This is the only product I run in my cars.I use Amsoil Signature Series in all of my cars, from my truck, daily drivers and four various Porsche models. Nothing better and I will never switch! Item Reviewed: Signature Series Motor Oils
Reviewed by ZacG: Good stuffIt's expensive but for protection it's worth it. It seems to be the best wear protection of any oils I've tried in my various vehicles Item Reviewed: Signature Series Motor Oils
Reviewed by Josh: OilUse it in all my cars, only oil that my cars don't drink like water. Item Reviewed: Signature Series Motor Oils
Reviewed by Camaro6: Worth the high costI have a 2016 Camaro ss that started to burn a little oil with the valvoline full synthetic I was using. I started using Amsoil and two oil changes later the car hasn't burned a drop of oil and the oil seems to hold up a lot better. I will only be using Amsoil in my cars from now on. Item Reviewed: Signature Series Motor Oils
Reviewed by Rat: Motor Oil - DieselBeen using this oil for years. Item Reviewed: Signature Series Motor Oils
Reviewed by Dale: A must have oil for the cold region.Switched over to Amsoil in my F-150 with the 5.4L Triton. Switch over with just over 100k on the truck. I did use the engine flush per recommendation. I did notice that it is quieter on start up at sub-zero(-20f) temperatures. I have oil pressure at turn key! A must have in the Northern area. Item Reviewed: Signature Series Motor Oils
Reviewed by Higg: I will buy and use this product againI use this 5w30 in a 2006 explorer with over 200,000 miles and have no issues. Item Reviewed: Signature Series Motor Oils
Reviewed by Shiz: Love itBest oil in the market use it on all our cars! Item Reviewed: Signature Series Motor Oils
Reviewed by Harry: Great ProductBest oil on the market. Buying anything else is foolinness. Item Reviewed: Signature Series Motor Oils
Reviewed by B: FluidsThe type of oils and fluids that go into my vehicles etc hands own #1 in the business you want the best from your vehicle then you have to use the best. Item Reviewed: Signature Series Motor Oils
Reviewed by MTpDog: Excellent OilExcellent oil, I use Amsoil in all my mechanical equipment and they last a long time! Item Reviewed: Signature Series Motor Oils
Reviewed by Brian: I Will continue to buy again and again!I use Amsoil in my pick up, I like the piece of mind of knowing I have the best possible protection for my engine. Item Reviewed: Signature Series Motor Oils
Reviewed by Tim: I continue to use this productI am a relatively new user, but the research I have done has all been positive and enthusiastic, both from friends and online. Item Reviewed: Signature Series Motor Oils
Reviewed by Barry: Great OilDecided to switch from Mobil1 to Amsoil for my Toyota cars. Went with the 25,000 mile oil so I don't have to change oil so often. Once a year oil change is perfect for me. Very pleased and it's such a better oil. Item Reviewed: Signature Series Motor Oils
Reviewed by 1973: Confident UserUsed and followed Amsoil for most of the last 45 years. It's always got the job done and the 5W-30 has worked great whether it's winter or summer. Change it once a year and forget about it. Even in my older high mileage cars, they make it from oil change to oil change without having to add. I love it. Can't understand why anyone would use anything else. Item Reviewed: Signature Series Motor Oils
Reviewed by Eric: I definitely would buy Amsoil 5w 30 againI use the Amsoil 5w 30 and the Ea Amsoil Oil Filters in both my 2018 Chevrolet Silverado and Tahoe. The quality and durability of the Amsoil is second to none. Item Reviewed: Signature Series Motor Oils
Reviewed by Don: like this oilnoticed when i put it in the engine ran quieter Item Reviewed: Signature Series Motor Oils
Reviewed by Bstill48: Great productGreat product. I drive 120 miles a day to go to work. I increased my gas mileage and can tell the difference in the engine in how quite it runs. Item Reviewed: Signature Series Motor Oils
Reviewed by Chuckle Berry: buy this oil for all my vehiclesI use Amsoil for all my vehicles, have done so for over 15 years, won't trust their protection to any other oil. Item Reviewed: Signature Series Motor Oils
Reviewed by D: Signature oilsGreat products keeps engines clean and lubricated Item Reviewed: Signature Series Motor Oils
Reviewed by Jerry420: Only oil for meI will only use amsoil products in my vehicles and for the price u can't beat it Item Reviewed: Signature Series Motor Oils
Reviewed by Mel: Best oil in the USAI use this oil in my ZL1 Camaro and it makes the car run cooler and the means that less friction, i have no dislikes Item Reviewed: Signature Series Motor Oils
Reviewed by Dave: Nothing betterNothing better out there for my 6.4 hemi. Item Reviewed: Signature Series Motor Oils
Reviewed by Art: Great OilI use this on my 2008 Volvo C30R with 166000 miles. Engine runs smoothly with amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by K: GreatOil is the best Item Reviewed: Signature Series Motor Oils
Reviewed by BillyO: Only the best for my Hellcat!Have used Amsoil on my 2018 WB Hellcat since 1st. oil change with Extremely satisfying results. So happy use it in my Jeep Wrangler as well. Nothing but the best for my vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by Hey you: Good productThis was recommended for my vehicle and I have used other amsoil products in other vehicles and have blessed using it. Tks Item Reviewed: Signature Series Motor Oils
Reviewed by Jube: Awesome stuffI have been running an amsoil product in my 08 Toyota Tundra since new. When i say new i mean when the engine had enough km's that it was past the break in point I switched. I ran Amsoil XL for several years at the recommendation of the place i get my oil changes at. Changed it out every 6 months. I am pretty sure Signature Series was never recommend as they would only get my business once per year. Not knowing exactly what Amsoil had to offer I did some further research and discovered this Signature Series oil. I now change my own oil as I am able to order directly from Amsoil. I have been running Signature Series for about 5 yrs now with basically a once a yr oil change. I mainly drive secondary rds but come fall hunting seasons i am all over the backwoods. Here where i live it can get down to -30 at times during the winter. The flow rate is excellent in extreme cold as well as I always watch oil pressure gauge and no matter how cold it seems the needle always jumps up quickly on cold start up. My truck now has 271,000 KM's on it. Even with once a yr oil changes the oil doesn't look alot darker than it did when i changed it the previous year. Great product I can't imagine running a different oil in. I now have my son's truck running on Signature Series as well. I plan on putting 1 million Km's on my truck! Item Reviewed: Signature Series Motor Oils
Reviewed by Frank: MPG2017 Tacoma TRD Off Road struggles to get 18mpg. Used Signature Series Synthetic and now getting 20-21mpg. Item Reviewed: Signature Series Motor Oils
Reviewed by Frenchbernie: Since I've discovered this product.Discover Amsoil in 2012 & have slowly been converting all my vehicles to Amsoil. Even converting friend but they are harder to convince because most rent their cars & basically don't care if they last or not. Consumer society. That being said all my immediate family use Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Upschuck: 25+ years of useSave time, money and engine wear. Have used Amsoil in all my vehicles and equipment for over 25 years and and have not experienced an engine failure. Item Reviewed: Signature Series Motor Oils
Reviewed by Clint H: Love the Extended Drain IntervalBeen using Amsoil in my Dodge Dakota since I purchased it 13 years ago. Today it has 250,000 miles on it and still runs great. Item Reviewed: Signature Series Motor Oils
Reviewed by Hard Rock Rubicon: Only the best oil for my JeepI have done only a couple of oil changes on my low mileage Jeep but I wanted the best oil and have no regrets with buying AmsOil signature series oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Oil buyers: It's amsoilI'm not sure how you review oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Glen: I use this product all of the timeI have a 96 Chev C-1500 with over 360k that has had AMSOIL in it for over 350k without any failures. It runs good and sounds like it has a new engine in it, but its the original without any major work on it. I also use AMSOIL in the transmission and the rear gears. I have had a valve cover off and you wouldn't believe how clean it was on the inside, no sludge. Item Reviewed: Signature Series Motor Oils
Reviewed by Bill: A well oiled machineFeels and runs smoothly ! Item Reviewed: Signature Series Motor Oils
Reviewed by Ken L: I would recommend to everyoneExcellent protection Item Reviewed: Signature Series Motor Oils
Reviewed by Bubba: I will use this onlyI highly recommend this product. I only use amsoil products in everything from my compressor to my vehicles. They have done there homework to produce great products. Item Reviewed: Signature Series Motor Oils
Reviewed by Vic: Good qualityAMSOULS NEED RETAIL OUTLETS Item Reviewed: Signature Series Motor Oils
Reviewed by JerseyGray: Best on the Market, Hands DownI use Amsoil in everything from my truck to my motorcycle, lawn mowers, generators and anything that takes oil. I also use the oil filters, gear oil, and everything that Amsoil makes. Item Reviewed: Signature Series Motor Oils
Reviewed by Rdskelton: I love itOil pressure is improved with this product Item Reviewed: Signature Series Motor Oils
Reviewed by Nick: Only the bestWhile I can't say the car runs better with this vs another top synthetic, I have hundreds of thousands of miles on my vehicles with this oil only changing once a year. Great stuff! Item Reviewed: Signature Series Motor Oils
Reviewed by Nick: Recommended for Boss 302Trusted product! This particular oil was made for my engine what can you ask more? They took the time and knowledge to make the oil possible for my car... its really a no brainer! Nice to have a compagnie that's back you up! Item Reviewed: Signature Series Motor Oils
Reviewed by Randy: Best oil and filters on the market in my opinionI have been using AMS Oil for 18 years and wouldn't use anything else. It is by far the best and all of my vehicles with several hundred thousand miles on them combined is the proof. Item Reviewed: Signature Series Motor Oils
Reviewed by Curt: Retired Truck Owner/OperatorI doubled my miles between oil changes which saved me money, I use it in my small truck also. Item Reviewed: Signature Series Motor Oils
Reviewed by Jeep Lover Josh: Test Results FantasticSo I run Amsoil signature series in all my vehicles. I run 5w-20 in the 2015 Jeep Rubicon Hard Rock and when I changed the oil at 7000 miles of use the oil lab came back and said to change at 9000 next time and see how it's doing. The wife's 2011 Subaru Impresa 5w-30 oil was changed at around 7000 miles as well and the results were the same! I think once the oil is tested at 9000 they will most likely advise I go even longer. They measured for contaminants as well as assessing the TBN which both came back outstanding, and both engines have zero issues. Black Labs is where I send my oil. The higher price for Amsoil is worth it in my opinion especially when I can go so long in between changes. It pays for itself. Item Reviewed: Signature Series Motor Oils
Reviewed by oneshot: I have used Amsoil in most of my vehicles for many years.I have numerous vehicles with 60-400,000 miles on them that have been running Amsoil most of their lives. All still have original engines. What more can I say? Item Reviewed: Signature Series Motor Oils
Reviewed by Jordan: Definitely would buy it againSo far so good. Only have 26k on the car so far. Item Reviewed: Signature Series Motor Oils
Reviewed by Gator Shelby: Best PriceThe best price and solid transactions Item Reviewed: Signature Series Motor Oils
Reviewed by Oil Fan: I use Signature 5W-30 in my daily driverUsed to go to quick non-synthetic oil change place until they stripped my oil pan threads. Decided to change my own and use Amsoil. Was changing every 5000 miles before now going 10,000 miles. Materials cost is more, about what materials and labor was before but I'm going twice as far. Item Reviewed: Signature Series Motor Oils
Reviewed by Great OIL!: Great OilHave been using this oil since around 2006. My 2006 Ford E350 work van has145,000 at 15,000 mile change intervals before I sold it . My 2006 E350 15 passenger van currently has 185,000 at 20,000 mile change intervals. Great oil have had no issues with it. Item Reviewed: Signature Series Motor Oils
Reviewed by Wilson: I would buy this engine oils againEngine has been running smoothly after changing into this signature oils. Item Reviewed: Signature Series Motor Oils
Reviewed by LDW: Been using it for yearsBest you can buy for your vehicle. Item Reviewed: Signature Series Motor Oils
Reviewed by Brogan: The oil I've been looking forI was nervous switching from high mileage to a full synthetic, but 84 Chevy pickup now runs better than ever and actually has less leaks now. I also run this same oil in my 84 Honda Nighthawk motorcycle. Item Reviewed: Signature Series Motor Oils
Reviewed by Ron: If you want the best oil this is the one.All I use in my vehicle's is Amsoil ...I wanted to put good oil in my vehicle's so tryed Amsoil and been using it for 20 years now. It's the best hands down period... Item Reviewed: Signature Series Motor Oils
Reviewed by The Mechanic: Highly recommend.I have used this product for years, I wouldn't trust any other product in my vechicles. Item Reviewed: Signature Series Motor Oils
Reviewed by G'd up from the feet up: Using this oil from here on outSolid oil that's maintained it color and viscosity for 3k+ miles of spirited day to day driving Item Reviewed: Signature Series Motor Oils
Reviewed by Sam: Simply the best engine oil for GDI engineThis oil controls carbon buildup on the intake valves of gas direct injection engine. lowest evaporation rate. Item Reviewed: Signature Series Motor Oils
Reviewed by Mark: Amsoil Signature SeriesI have been using this product on my 2010 Mazda 3GT since new. I am nearing 186,000 miles on the car and have the oil checked at every change. The analyzers are always telling me the oil has more life left and everything looks great. I will be using this product in every vehicle I own and recommend it to everyone who asks. A first rate product! Item Reviewed: Signature Series Motor Oils
Reviewed by SharpSmith: Highly recommend this productAs a mobile sharpener, I put a lot of miles on my vehicle. By using AMSOIL, I have peace of mind that my van will run smoothly for a very long time. I highly recommend this product! Item Reviewed: Signature Series Motor Oils
Reviewed by JK: YesI use product in my 2016 2.4 litre canyon . It's a great product but my engines seems consume some of it . A litre on 5000 km disappears through exhaust . Item Reviewed: Signature Series Motor Oils
Reviewed by Felix: Will continue to use this productLong lasting great protection Item Reviewed: Signature Series Motor Oils
Reviewed by Joelon: Simply the BestGoing on 7k mile oil change...oil still looks new... Car performing well. Amsoil is the best of the best.. you get what you pay for...no more mobile one or Royal purple for me ..never again. Item Reviewed: Signature Series Motor Oils
Reviewed by Rob: I WILL BE BUYING MORE!!!!I wouldn't use ANYTHING ELSE!!!!! Item Reviewed: Signature Series Motor Oils
Reviewed by Pedro: The best motor oil and product !I be using amsolil in all my car back front the 1990 I never have any engine problem. All my cars run good and I put a lot of miles and the engine always run good ! I have 2014 Acura MDX I be using amsoil when the car make 7,500 and the car still running like new ! Item Reviewed: Signature Series Motor Oils
Reviewed by Pedro: I start using Amsoil in the 1990I be using amsolil in all my car back front the 1990 I never have any engine problem. All my cars run good and I put a lot of miles and the engine always run good ! I have now a 2018 Accord that only have 9 months and have already 31,000k and I be using amsoil when the car make 7,500 and the car still running like new ! Item Reviewed: Signature Series Motor Oils
Reviewed by JetAMT: Sense 1982This is hands down the very best oil you can buy. Been a faithful Amsoil user sense 1982. The very best protection there is Item Reviewed: Signature Series Motor Oils
Reviewed by JT: I only use this product for my carsWhen servicing my vehicles with Amsoil Sinature series oil, the dealer always comments on how there are no leaks. It also increases my trade in value when I upgrade. Never a complaint. Item Reviewed: Signature Series Motor Oils
Reviewed by Mal: Great productUsing this Motor Oil puts me at ease and you can depend on it to so it's job. I have used Ams Oil for years now and it keeps your engine running as quiet with nearly 200,000 miles on it as the 1st day you got your car. It definitly keeps your internals sludge free. This I have experienced first hand. Oil pan and valve cover removal. Item Reviewed: Signature Series Motor Oils
Reviewed by Tarzan: This high quality product is the best!I use Amsoil products for all of my lubricants in all my vehicles and equipment since 2015. I am very pleased with the performance and protection and am convinced these products are second to none. I bought an F-150 in 2015 that sounded like the transmission was ruined, put in an other brand of transmission fluid and nothing changed. I then put in Amsoil transmission fluid and it immediately fixed the problem. I haven't looked back since. I know the products might be a little more expensive then some, but they are the best. Thank-you for putting out a great product that is a valuable investment for hard-earned money! Item Reviewed: Signature Series Motor Oils
Reviewed by Dust: Awesome product. Will be my only oil from now on.Great Product, run the small engine oil in my Kohler whole house Generator.. runs cooler , quieter and I know I'm using the best oil between change intervals... also I have a 2005 F150 with the 5.4 Triton Engine.. everyone knows about the problems with these motors.. switched over to Signiture 5w-30 a couple years ago.. runs a lot quieter , cooler and just seems to purr .. yes I know the motor specs 5w-20 but it does honestly run better and have had 0 issues with the motor.. ... Bought truck new in 2005.. Item Reviewed: Signature Series Motor Oils
Reviewed by Greg: Great productsUse it in everthing Item Reviewed: Signature Series Motor Oils
Reviewed by none: QualityI use Amsoil because it is the best oil. I recommend it to all my friends. Item Reviewed: Signature Series Motor Oils
Reviewed by Phil: Best protection for your engine - period!I will only use Amsoil lubricants in my vehicles and power equipment. Amsoil products are the best protection I can get and give my investments. Item Reviewed: Signature Series Motor Oils
Reviewed by Mike: Best oil I've triedHad royal purple in my wife's Dodge Durango 5.7 V8. If it sat for a few days and I started it I could hear a valve knock that lasted a few seconds and sounded bad. I've had this amsoil in with amsoil oil filter and I can leave it sitting for a week and start up sounds completely normal. I can tell I'm getting proper lubrication and I trust amsoil because of it. Also put it in my Cummins diesel and it's smooth as glass as well. I think I'm amsoil for life. Item Reviewed: Signature Series Motor Oils
Reviewed by Pontiac 6: Best oil on the marketI have been using Amsoil oil and filters for about 20 years and in my opinion they are the best on the market. I ran a 2001 Chevy Blazer 25K miles between changes with absolutely no problems and it was still running perfectly with 109K miles on it when I sold it. Item Reviewed: Signature Series Motor Oils
Reviewed by Josh: Great productI use this oil in my 98 wrangler works great Item Reviewed: Signature Series Motor Oils
Reviewed by VQ35DE: 180k strongShe still beats a GT Mustang after 14 years, running Amsoil since the start Item Reviewed: Signature Series Motor Oils
Reviewed by AmsoilGuy78: Best Ever!I run this in all of my vehicles. It is worth every penny for sure! You won't regret buying this. Item Reviewed: Signature Series Motor Oils
Reviewed by Timothy A SFC RET: The only oil I will usePhenomenal product that is worth the price. Yes it is expensive initially, but it has stood up to some hard usage with issues. 20K oil? Bet on it! Item Reviewed: Signature Series Motor Oils
Reviewed by Adil Ejaz: Awesome ProductThis is the best oil I have ever used Item Reviewed: Signature Series Motor Oils
Reviewed by Stephen: A product I trust and use!Using Amsoil products for over 20 years and nothing else... Item Reviewed: Signature Series Motor Oils
Reviewed by Ain't got time: Amsoil is greatI use Amsoil, dual bypass oil filtration, and test lab analysis to support extended oil changes. Lab analysis has shown me I can run almost 40K miles without changing oil. I sometimes drive 1000 miles a week or more for my job; and monthly oil changes simply don't cut it. Amsoil does. I spare not the miles and trust Amsoil to go the distance; I have independent lab analysis to demonstrate it. Item Reviewed: Signature Series Motor Oils
Reviewed by Mr Ed: Best Oil Around!It's the ONLY oil I will allow to be used for my Shelby GT 500! Provides the greatest protection for the high performance engine! Item Reviewed: Signature Series Motor Oils
Reviewed by Asphalt F150: Only oil/filter i will ever buyI use this oil in my 2013 F150 with the eco-boost 3.5L engine. Truck burns or uses zero oil between oil changes(once a year). I only drive about 7,000 miles a year. I use Amsoil because I know Amsoil makes the best products available. Item Reviewed: Signature Series Motor Oils
Reviewed by Bubba: Long time userBeen using AMSOIL since the 70's in many cars and trucks. Sold one truck to a mechanic after 204K miles. He said it was the cleanest engine he' ever seen. Item Reviewed: Signature Series Motor Oils
Reviewed by rrigsby24: If your not an Amsoil guy, your doing it wrongCustomer for 7 months. I can't say anything someone else hasn't said already. This was for my Dad's girlfriend car. We have my truck, his truck, her SUV, my mower all on amsoil. My truck is all done. Engine, tranny, rear end, transfer case. Waiting to put in coolant. It sells itself. They say everything drives.i use signature series and will never use anything else in any motor I ever own.dealerahips can say whatever they want, just stinks you have to change within a certain mileage to keep warranty cause this oil goes forever compared to rest. Use it and see!!!! Item Reviewed: Signature Series Motor Oils
Reviewed by Sierra owner 12: Good oil, keeping the motor cleanI chose to go 0-40 for both cold flow and film strength at the running temps. Motor is getting cleaner every oil change and is running great. I tow with confidence and will continue to run the first in synthetics Item Reviewed: Signature Series Motor Oils
Reviewed by TM: Best oil you can get!After switching over to AMSOIL Signiture Series 5W30 in my '07 Prius, I couldn't be happier. The gas motor is running very smoothly and more efficiently since I have owned it! Not too shabby considering it has 124K+ miles on it! This oil is the real deal. If you are serious about keeping your car in the best condition for as long as possible, there isn't a better oil out there that can deliver on that than AMSOIL. Item Reviewed: Signature Series Motor Oils
Reviewed by Mike T: Best oil I have found yetBack in 2006 I have swivhed from other brands to Amsoil. Based on some independent test results, and most importantly a friend. Who have tested his 12000 mile oil being Amsoil, on 45000 mile vehicle, that used amsoil since new. Test results sugested fillowing: 1) oil is 6000-7000 mile old 2) engine is 15000-25000 miles old 3) if lubrication continues as before, engine should ladt over 300000 miles. Item Reviewed: Signature Series Motor Oils
Reviewed by Duff: Best stuffI have a 05 ram 2500 HD 250000 miles on it still runs like a dream Item Reviewed: Signature Series Motor Oils
Reviewed by John: In year's past ....I used this blend for years until I changed to the European blend and it worked very well .... Item Reviewed: Signature Series Motor Oils
Reviewed by Mario: YesGood Item Reviewed: Signature Series Motor Oils
Reviewed by Nick/repair tech/enthusiast: Best oil you can buyThe highest quality oil for everything with and engine, hands down. Item Reviewed: Signature Series Motor Oils
Reviewed by Big Al: Great stuffI've used Amsoil over the last 30 plus years and never had a problem with any of the product. I use it in offroad vehicles, 4x4 Jeeps, turbo charged engines, NA engines and anything else that benefits from a high quality synthetic lubricant. Item Reviewed: Signature Series Motor Oils
Reviewed by Hubert: I have been using Amsoil products since 1984.I have been using Amsoil 100% synthetic engine oils in all my cars, my wife cars since 1984. Item Reviewed: Signature Series Motor Oils
Reviewed by Tads Subaru: Top quality oilI have used Amsoil signature oil for over a 100,000 miles in my vehicle. I tried other oils but they did not last or perform up to my standards. Item Reviewed: Signature Series Motor Oils
Reviewed by Racing girl: This is my go to for my truckI can go a long time between oil changes with the signature series 5W 20 oil, it is amazing how much better my truck has been running since I have been using it. I haven't found a con with it yet, just all pros! Item Reviewed: Signature Series Motor Oils
Reviewed by Jay: GREAT STUFFI have used Amsoil for many years, I use it in all my vehicles everything from my daily driver to my classic and antique cars, I even order it for my friends and family who all love how it works and the convenience of use ie. Once a year oil change. Item Reviewed: Signature Series Motor Oils
Reviewed by Sacco: I would buy this oil again.............. ............. Item Reviewed: Signature Series Motor Oils
Reviewed by Larry: Good ProductAMSOIL Signature Series 5W-30 Motor Oil Item Reviewed: Signature Series Motor Oils
Reviewed by Animal: Great productThis product has Pierier antiwear property is Item Reviewed: Signature Series Motor Oils
Reviewed by Chuck: I always use AmsoilI've been using Amsoil oil for more than 20 years so when I bought a used 2011 Toyota Highlander that requires 0W20 oil I chose Amsoil Signature. I noticed that the my SUV used less oil with Amsoil compared to whatever the dealership put in it. I've had several vehicles that even after 10,000 miles used virtually no oil when using Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by None: I love the oil, all of it.I have been using Amsoil for years. Commutes for me is 40 to 50 kms oneway and I can run Amsoil and never have to add oil. Had an old car overheat in Calgary one summer due to traffic on the deerfoot trail and there was no problem afterwards with the car or the oil. Item Reviewed: Signature Series Motor Oils
Reviewed by Trevor: I have bought this for years!I have used this product for years, it gives my vehicles top notch protection! Item Reviewed: Signature Series Motor Oils
Reviewed by Harley Cop: Beats sliced bread and bottled beerI have used Amsoil products since 2003. Never a problem. I have recommended it to friends without any qualms. Item Reviewed: Signature Series Motor Oils
Reviewed by DJM: Best product ever, life time customerEver since discovering this oil in 2005 I've never used anything else, and it's never let me down. 15k miles between oil changes and it's still gold in color not black like others. Item Reviewed: Signature Series Motor Oils
Reviewed by Chris: Love this productI use the product in my 2013 Dodge Ram 5.7L. Item Reviewed: Signature Series Motor Oils
Reviewed by DoubleD: I will never buy another oil againI have used amsoil in my motorcycle and personal vehicles for years. All of them perform perfectly. Item Reviewed: Signature Series Motor Oils
Reviewed by Lando: I would buy this product again and againProduct works amazing! No issues Item Reviewed: Signature Series Motor Oils
Reviewed by Ernie: I will buy all amsoil products especially oil an power foamLove the oil never had issues power foam is the best out there if ya know how to use it correctly.. very happy with the results and products.. Item Reviewed: Signature Series Motor Oils
Reviewed by Andy: I will use this for as long as I liveAmsoil is de bessss! Item Reviewed: Signature Series Motor Oils
Reviewed by Smilinjack: Never lets you down Never fails. Actually works as advertizeSmilinjack has been using AMSOIL 1030,1040 2Cycle oil, Power Foam, oil and air filters and Performance Improver continually since 1979. Once we tried it, have never ever needed or used anything else. Automotive use, lawnmower, lawn tractor, boat motors and my portable generator all perform well with AmsOil in the crankcase. Excellent products. Knew a good thing when we first found it and will never go to anything else. EOM Item Reviewed: Signature Series Motor Oils
Reviewed by Joe: I use nothing but Amsoil for the last 8 years.Great product, love the extended drain capability. Item Reviewed: Signature Series Motor Oils
Reviewed by Tom: Amsoil Signature OilI have been using Amsoil in every vehicle I have owned for the past 15 years. I like the extra protection and only changing oil once a year. Item Reviewed: Signature Series Motor Oils
Reviewed by Robert: yesyour car runs great Item Reviewed: Signature Series Motor Oils
Reviewed by Brian: I keep this stuff in my shop by the case.I just had a 600 horse 460 Ford built and put in my truck and this oil is the best insurance for a hydraulic roller cam motor in my honest opinion.. Item Reviewed: Signature Series Motor Oils
Reviewed by Rob: Great product at any priceThis product goes in all my vehicles! Item Reviewed: Signature Series Motor Oils
Reviewed by Alex: Will buy againUsed it in my 2015 Ford Fiesta rally car. Seems to be working. Item Reviewed: Signature Series Motor Oils
Reviewed by Mack: ONLY THE BEST WILL DO!!Well, I am not the guy who owns a mega-truck or 5 SUV's. I have the "love of my life" who's stuck with me for 38 years and a major cardiac failure. My goal is to make sure that this investment of my life sticks around for awhile. Everyday she gets in her 2013 Honda CR-V and takes to the roads. Her rig WILL have the BEST I can afford protecting her. This is why when it comes to the products you make, they will be used. When the BEST is used there is no need for excuses! Item Reviewed: Signature Series Motor Oils
Reviewed by Craig Sr.: Don't know where to start when talking about GREAT PRODUCTS!I have been around cars and trucks since I was 11 years old...rebuilding, normal maintenance, restoring, and mechanical. At almost 70 I can tell you that my pride and joy is a 1998 Chrysler Town & Country LXI mini van. I proudly have 385K Amsoil miles and it still runs like new. I get exceptional mileage, no smoke from exhaust, no rough idling, no engine noise (that most older motors get), and can say after sitting in the drivers seat all those miles...I still love to drive it and see what new gets better! I am constantly surprised at how smooth a quiet the motor runs. When I take it get my tires rotated they always comment on how well it runs...here is the irony. When trying to explain about additives there is a blank look as people just don't understand that synthetic oil is engineered not manufactured. A lot of time, research dollars, and effort has gone into the making of each product. I will always explain the benefits of Amsoil when asked...just get tired of people that are ignorant to the science and technology that has made this product what it is. I have been a 20+ year user and will always continue! Thanks Amsoil for sticking to your desire to be the best! Item Reviewed: Signature Series Motor Oils
Reviewed by Dennis: I will buy this product againI use this in all my car's and trucks Item Reviewed: Signature Series Motor Oils
Reviewed by Derek: I wont buy anything else!!Best oil on the market! Item Reviewed: Signature Series Motor Oils
Reviewed by Jerry: I like AmsoilI've been using Amsoil products for many years. I don't have to worry if I've gone over the 5,000 mile interval, because I know Amsoil will protect my engines. The oil filters are top grade, and great to use with Amsoil. I also use many other AMSOIL products. The gun cleaner and gun oil is excellent for my police service revolver and I use it faithfully, knowing it will protect my pistol, shotgun and assault weapon. The cost may be slightly higher, but the protection is excellent and guaranteed to perform. Item Reviewed: Signature Series Motor Oils
Reviewed by Boosted: Best oil on the marketIt's simply great oil made for great engines. Item Reviewed: Signature Series Motor Oils
Reviewed by Bones67: So not want to useat any other oilHave used for years on my 2000 Chevy Impala, 1995 Toyota corolla, 2010 and 20 12 Toyota Prius, and will be on my 20 17 Rav4 b Item Reviewed: Signature Series Motor Oils
Reviewed by C6: Ow20Oil exceed all expectations. Item Reviewed: Signature Series Motor Oils
Reviewed by Danny: Love this productIn my truck Item Reviewed: Signature Series Motor Oils
Reviewed by Jake: Great productI use it in my 2014 Chevy Silverado Item Reviewed: Signature Series Motor Oils
Reviewed by Mike D: Only product I useSince day 1 of the first oil change, and several others, 45K miles later it's still running like a champ. I've been using Amsoil for years. Nothing will change my mind. Item Reviewed: Signature Series Motor Oils
Reviewed by Wheelchair Pete: Great all season protection, IMOBeen using this in my DD/cars for the past 10+ years and never any oil issues. Item Reviewed: Signature Series Motor Oils
Reviewed by LadyTuner: 11 years of the best!I converted my car to Amsoil 11 years ago when I first bought her. She was 4 years old and had 78k miles. Once I changed her to Amsoil, she instantly ran better. Now at 176k miles, she has the cleanest valves any mechanic has seen! I'm proud to be raised on Amsoil Item Reviewed: Signature Series Motor Oils
Reviewed by Cycotravlr: The BestI use Amsoil Signature Series 5W-30 sinthetic oil in my 2006 Solstice and my 2013 F-150. Amsoil is the Best and wouldn't use anything else. Item Reviewed: Signature Series Motor Oils
Reviewed by racinjayson: I have bought, will continue to buyThis is a great product and I use it in all of my vehicles. The biggest difference is that all my motors run quieter than any other product I have tried including royal purper. Could not be happier. Item Reviewed: Signature Series Motor Oils
Reviewed by Jim: Amsoil is the only fluids I use, period!I have 0 complaints about any product that I've used yet. My 06 Silverado and 07 Trailblazer both get Amsoil. 15k Mike changes with 0 issue Item Reviewed: Signature Series Motor Oils
Reviewed by GREEN FLAMES: 1ST TIME BUYERI HAVE A BRAND NEW 383 STROKER ENGINE IN MY 2004 SILVERADO. IT WAS RECOMMENDED TO PUT A GOOD OIL IN MY ENGINE AFTER THE BREAK IN OIL WAS CHANGED.READ REVIEWS ON SEVERAL DIFFERENT OILS AND REALLY LIKED WHAT I READ ABOUT AMSOIL. WHEN I FIRST GOT MY ORDER IN THE FIRST THING I NOTICED WAS THE BOTTLES WERE MADE DIFFERENT THEN ANYTHING ELSE I EVER USED. THEY WERE THICKER PLASTIC AND ARE POUR FREINDLY. DIDNT NOT HAVE TO WORRY ABOUT SPILLING OIL ON MY NEW ENGINE. Item Reviewed: Signature Series Motor Oils
Reviewed by Stan: Best there isBest you can buy. Item Reviewed: Signature Series Motor Oils
Reviewed by Kyle: My go to oilGreat product Item Reviewed: Signature Series Motor Oils
Reviewed by Chris W: I WILL buy this product again.AMSOIL is THE ONLY oil and lubrication product I use in everything I own. I would put this up against any other synthetic lubricant any day. Item Reviewed: Signature Series Motor Oils
Reviewed by Dennis: I Would definitely buy this product again.I have been using this oil in my06 Dodge Ram for years. Makes better oil pressure than other brands. Item Reviewed: Signature Series Motor Oils
Reviewed by Rusty: Great oilRun, it in all three vehicles that call for 5 w 20wt. Item Reviewed: Signature Series Motor Oils
Reviewed by Tim: Quality productI have used Amsiol products in all my vehicles for several years with good results. Item Reviewed: Signature Series Motor Oils
Reviewed by Mismo Titan: Titan Loves ItSwitched to amsoil and my engine is quieter, and runs better. I tow a lot with my truck and know with amsoil that the oil is breaking down under heavy load. Item Reviewed: Signature Series Motor Oils
Reviewed by Blu1: Few choicesNot many choices for 5w-50. This is the only real quality option. Thanks for making the wt. Item Reviewed: Signature Series Motor Oils
Reviewed by Cliff: There is no other oil like AMSOILI own a pickup and two autos, two utility tractors, four chain saws, three weed eaters and eight small engine machines. I have AMSOIL in each and every one. My Pickup is used to pull a large trailer and for snow plowing for several customers. I also use fuel cleaners, fuel preserve products, oil mix and grease gun tubes. I have experienced oil leaking and oil burning motors stop doing both and a one pull start on the small motors.There is no other oil and other products that compare to AMSOIL. Item Reviewed: Signature Series Motor Oils
Reviewed by CJ: Long time usesBeen using Amsoil 20 years and have had no problems. Put oil in my Durmax and put the big filter on and did need to change oil only once. Item Reviewed: Signature Series Motor Oils
Reviewed by Cycotravlr: I will buy this again.I use 0-20 Amsoil in my Family crossover. I run it 15,000 mile between changes and the oil still looks clean when I drain it. Item Reviewed: Signature Series Motor Oils
Reviewed by Collin: I will only buy this product from now onThe Signature Series oil is the best and most money-worth-it oil that's available from Amsoil...period! Item Reviewed: Signature Series Motor Oils
Reviewed by headhound: Keeps my cars running long and strongMinimizes actual engine wear while managing fuel economy. Yearly oil changes is great. Item Reviewed: Signature Series Motor Oils
Reviewed by Otsg392: I will buy this product again.I put Amsoil 5w - 50 I'm my 2012 Boss 302. Product works great for regular driving or hittting the track. Item Reviewed: Signature Series Motor Oils
Reviewed by The bear: Have used this product for over 25 yearsI used this product in my SUV, runs smooth get better mileage and start very well in extremely cold weather. I used their product in all my vehicles and small engines. Item Reviewed: Signature Series Motor Oils
Reviewed by Larry for Life: Incredible StuffAmsoil makes a huge difference in the performance and longevity of your vehicle. Nothing else goes into my cars, trucks, lawn mowers, chainsaws, etc. Item Reviewed: Signature Series Motor Oils
Reviewed by Mike G in SD: I will buy this product many, many more times...great stuff!I've been using AMSOIL motor oil for just over 5 years now and been very satisfied, no complaints...ever! Item Reviewed: Signature Series Motor Oils
Reviewed by Al: Great productI use it in all the engines in my house. My cars, lawn mower, pressure washer and generator. I feel my equipment runs better and more efficient. Item Reviewed: Signature Series Motor Oils
Reviewed by soOldithurts: Use it in track car and without any problemsI use this oil in my track car. I have a magnetic plug and nothing has shown up there. The filter is also clean after each use (I check it). Oil pressures are good on track. I plan to use this oil well into the future. Item Reviewed: Signature Series Motor Oils
Reviewed by Andrew: I would definitely buy this!I run this oil in my 2003 Honda S2000 and I love it. Had my head rebuilt and checked the cylinder walls, cams, etc. with 111k miles on the engine with force induction. There were barely any wear at all! I will always run Amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Vader3: This is the only oil I will use is my Chevy BlazerI use the 5W30 along with the Amsoil oil filter and I run it 15,000 miles before I change the oil. I also use the Amsoil AFT which can keep the transmission temperature up to 60 degrees cooler. Reduce friction and save your equipment Item Reviewed: Signature Series Motor Oils
Reviewed by Paul: Been using for yearsI use only Amsoil in all my vehicles--engine, trans, and differential. Best products on the market. Item Reviewed: Signature Series Motor Oils
Reviewed by Drake: Will buy againLasts well. Color is still clean after 5k. Gas milage is slightly higher. No oil leaks in a Ford Taurus with 200k. Item Reviewed: Signature Series Motor Oils
Reviewed by JHPAINT: Great productGreat oil for direct injection engines Item Reviewed: Signature Series Motor Oils
Reviewed by Johny: Been using this for 15 yearsI've been using this since 2003 in my Toyota Solara that has the V6 which is prone to sludge. I now have 470,000 miles on it and still running strong and does not smoke. I change it and the filter about every 10 to 15 thousand miles, sometime longer. Item Reviewed: Signature Series Motor Oils
Reviewed by JC: Great ProductIn work&personal vehicle.Work car approaching 300,000 miles-Starts easy in old weather-improves gas mileage-don't have to change every 3000 miles as you have to with conventional oil-can't think of anything negative Item Reviewed: Signature Series Motor Oils
Reviewed by drew: High Heat Low FrictionI use this oil in a variety of cars and trucks i service. Some of these cars are turbos and some are natural aspiration. No matter the heat load in any of these cars or trucks they seem to have extremely low friction when i inspected during engine rebuilds. Item Reviewed: Signature Series Motor Oils
Reviewed by Drew: The Best Oil Ever MadeI buy this oil about once a year for a friends 2004 Lincoln Town Car. He only drives around the city and occasionally to Richmond Virginia. He always gets a 19~20 mpg in the slow city with the ac blasting and on the highway 25~27 mpg. That is a 280 hp 4.6 liter v-8. The engine runs so smooth now its a huge difference from before the use of amsoil. Item Reviewed: Signature Series Motor Oils
Reviewed by Brian: YesIn my motocycle Item Reviewed: Signature Series Motor Oils
Reviewed by Nick: Simply the bestThe to go motor oil for all 0W-20, 0W-30, 5W-20, 5W-30, 10W-30 applications except europeans. Item Reviewed: Signature Series Motor Oils
Reviewed by Sam: My engine is super quiet nowMy engine is really quiet now. That tells me that Amsoil is lubricating the engine in a way that the other oils can't. I changed all the fluids on my 2017 Chevrolet 2500 HD 4x4. Fuel mileage is up and vehicle noise ( engine, transmission, transfer case and differentials ) is down. it truly makes a difference. Item Reviewed: Signature Series Motor Oils
Reviewed by Poppabear: Love this stuffI use Amsoil products in my truck and my wife car. I started using Amsoil products in my race car many years ago and had such good luck with them I have been using them in anything I own with a gasoline engine. My truck has over 200,000 miles on it and it runs like new. We use my wife's car for road trips and I always ride with confidence in Amsoil products. I would definitely recommend Amsoil to family and friends.. Item Reviewed: Signature Series Motor Oils
Reviewed by Scott: oilgreat stuff Item Reviewed: Signature Series Motor Oils
Reviewed by Two Hair: I have been buying this product again and againI have been using this product (5w-30 signature series) for sixteen years. A little better gas mileage and I feel the auto is better protected in our high heat that we get during the summers here. Item Reviewed: Signature Series Motor Oils
Reviewed by Bill: Very good product and very reasonably pricedWe Transport trailers with our pickup and run only Amsoil in it. Love the extended oil changes, especially since we run so many miles. Because of the ability to run more miles on it, it actually is cheaper to run Amsoil. Wouldn't run anything else! Item Reviewed: Signature Series Motor Oils
Reviewed by KB: Best Product on the MarketBy far the best motor oil I've used! Item Reviewed: Signature Series Motor Oils
Reviewed by Tim: Buy nothing but smsoil.Use it in honda crv.Great oil. Long life. Item Reviewed: Signature Series Motor Oils
Reviewed by Pose: Engine OilI only trust Amsoil in all of my vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by Dale: Mechanics Amazed at inside of engine during gasket repairA couple of years ago I had my 1998 Chevrolet Silverado in the shop for an intake gasket repair. About mid-day I received a call from the repair shop asking me what kind of oil I ran in the engine. They were amazed as they told me they had never seen an engine so clean inside. I told them I had been running Amsoil in the engine for the past 1.5 years. I had heard of Amsoil for years and talked to a diesel mechanic a few years before and he ran Amsoil in everything he had. I figured if a diesel mechanic ran it in his vehicles, motorcycles, and lawn equipment it was good stuff. I have not been disappointed, I immediately noticed easier cold starts and better gas mileage in my vehicles. With the miles my familiy's vehicles travel, a once a year oil change with the extended life best synthetic oil on the market is a convenient and cost effective solution for ensuring my vehicles engines are protected with great lubrication. And the added bonus of creating less waste for our environment is big for me as well. Convenient online shopping and dependable delivery put my vehicle's lifeblood in my hands within days of ordering it. Love the product and will be using it for years to come. Item Reviewed: Signature Series Motor Oils
Reviewed by Jean: i would buy morevery good Item Reviewed: Signature Series Motor Oils
Reviewed by daves jeep: yes i would buy it againits a great oil I have every use in my cars! Item Reviewed: Signature Series Motor Oils
Reviewed by Dan: Nothing but the bestI use Amsoil oil for everything I own car pick up motorcycle lawn mowers weed eaters I wouldn't use anything less Item Reviewed: Signature Series Motor Oils
Reviewed by Shane: The BestI have tried every synthetic oil over the years.Then I tried Amsoil signature series 5w-20 in my 2017 dodge Ram with the 5.7 hemi.Notice a big difference in smoothness and performance,like pouring a few energy drinks in the engine!!! I change my oil every six months, I wont be close to 25,000 miles but if I go over six months I know the engine will be okay. I have changed my oil with other synthetics that claim they can go 15,000 or one year, I changed mine at 6,500 and it was black and smelled burnt and was already starting to sludge.You won't get that with Amsoil. It cost a little more but it's well worth it !!! If your going to keep your truck or car for a long time Amsoil is the way to go,If you lease every two years don't bother.Give it a try it's THE BEST!!! Item Reviewed: Signature Series Motor Oils
Reviewed by Binor: Only oil I useThe day I bought my 2005 F250 4x4 I brought it home and drained the stock oil and refilled with 0W20 amsoil and amsoil oil filter. Since that day my truck has never seen any other oil or filter. My truck is now 13 years old and it runs like the day I bought it. I change my oil once a year no more no less ! ! ! Item Reviewed: Signature Series Motor Oils
Reviewed by JC: Signature series 5W-30 motor oilI have used the Signature series oil for years. I like having the protective properties of the oil with extended change intervals. I have one vehicle with over 225,000 miles runs great and uses zero oil between changes. Item Reviewed: Signature Series Motor Oils
Reviewed by Joe: A top oilUse this in my Mustang GT....won't use anything else. Lots of debate as far as what's best but this is my favorite. Item Reviewed: Signature Series Motor Oils
Reviewed by David: If there was a better lubricant anywhere, I would be use it.I have been an AMSOIL user for many years, and as a mechanical engineer know the value Item Reviewed: Signature Series Motor Oils
Reviewed by Mark: Go with the best!AMSOIL is in every engine I own! Item Reviewed: Signature Series Motor Oils
Reviewed by Michael: AwesomeSimply the best oil to use. Thank you amsoil Item Reviewed: Signature Series Motor Oils
Reviewed by Sean: High qualityLike all signature series it is the best oil I've used. Amsoil is one of the few oil manufacturers that shows testing results. They also sell testing kits. Their oil is top notch. Mobile 1 annual protection is basically a cheaper version of this. ( as it's not as good) if you want the best protection this is it. It also pays for itself as you can run it longer. Item Reviewed: Signature Series Motor Oils
Reviewed by Christian Marcel: Too good to believe.On January 20,18, I purchased a 2008 Dodge Durango w/ a 5.7, 4x4. It had 89,000 miles on it Item Reviewed: Signature Series Motor Oils
Reviewed by Jason: Good OilI run this oil in my 2011 Land Rover LR4 with a 5.0L that requires synthetic oil. I've had this oil tested at the manufacturer's recommended interval of 7500 miles and there was still some life left in it. The next time I went to 9000 miles and had it tested, this time the oil was no longer good, so I'll stick with Land Rover's recommendation. This is with Land Rover's canister oil filter. Amsoil doesn't make a long life filter for it. Item Reviewed: Signature Series Motor Oils
Reviewed by Oscar the oily otter: Heck yesBeen using AMS in all my vehicles for 15 years . Have not had any engine oil related problems yet! Item Reviewed: Signature Series Motor Oils
Reviewed by AK: Over 200K and going strong.I have a Toyota Corolla I bought new in 2007. It now has over 200K miles on the odometer. It has had only Amsoil and the only thing I have had to do is normal maintenance and it still gets over 30 mpg. Amsoil is the only oil I use in all my vehicles. Item Reviewed: Signature Series Motor Oils
Reviewed by The Duke of Earl: Best Oil on the planetHad my oil changed at a dealership. They showed me some black sticky that came out of the oil pan. I called AMSOIL with my story and they had me send in a sample and some of the oil that drained. They did a thorough check and found that the oil had not failed in any way, some other contaminant apparently fell in while under warranty gasket replacement. Great company that stands behind their products! Item Reviewed: Signature Series Motor Oils
Reviewed by Tootall Ted: Many miles!!1993 Cadillac Sedan deVille. 4.9 liter aluminum block engine. 351,136 miles!! Enough said! Item Reviewed: Signature Series Motor Oils
Reviewed by John: Use nothing but Amsoil in my vehicles.Use at the recommended Amsoil oil change intervals. Never had any engine problems. Item Reviewed: Signature Series Motor Oils
Reviewed by Tuff: TuffyJust and great oil . Item Reviewed: Signature Series Motor Oils
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Reviewed by Tanisha:
I won't buy anything else
I've been using Amsoil Signature series for over a year now. Won't use anything else in my vehicles!