Customer Ratings & Reviews

Use this in my truck engine. It's a great product. It keeps my motor clean.

I have a 2013 Hyundai Sonata. Great car. I have been using Amsoil after the first scheduled oil change and have noticed better performance, meaning the engine cranks over easier. The car runs, my opinion, a lot better. During my driving and idling with this car, I noticed that the engine has a small pinging noise. Soon after I get a recall notice in the mail from Hyundai that during the engine building process, there were small metal shavings that were not completly taken care during the the assembly of the main bearings, thus this will cause a "pinging in the engine. Huyndai will futher investigate this matter and send another notice explaining a course of remedy. I was using Amsoil 5W-20 signature series oil, and since I live in Utah and according to the owners manual I can use 10W-30. I purchased 10W-30 signature series oil and when the time came to drain and fill with oil, I put in the 10W-30. There is no pinging noise, however to be truthful, I think because of the heavier oil I have not been getting the mileage that I did with 5W-20. But i'm willing to sacrifice milieage for a heavier oil that could outlast the Hyundai problem. I highly recommend Amsiol oil.

Ive been using amsoil for 25 years. Its pricey, but i pay it for a reason!

Since my 2004 F-150 called for 5-20 I have used where required. Is far superior to any other 5-20 oil I tried and burnoff and protection.

works great

Use in 2004 boxster S racecar. Awesome product. Last the whole enduro weekend without worry. Usually 15 hour endurance race.

This oil is used in my 675 hp BBC.

I have used this in my gas fired cars and trucks since 2002, no problems at all.

Always use this in my vehicles. Best oil I've come across. Amsoil or bust

Hands-down this is the best oil in the world for any vehicle you own. I've use this oil in my cars and trucks since I've owned them I will never go back to any other type of oil besides Amsoil best product in the world

C7 Stingray, 2017 Equinox ,, 2009 Vibe

2015 Mazda CX-5 purchased new. Car computer reported 24 - 26 average MPG. Switched to Amsoil at 32000 miles and experienced instant MPG increase. I have 10000 miles on Amsoil now and average MPG is 29 - 31. Considering the MPG performance increase after switching to Amsoil, I'd say the two years of free dealer oil changes was a money loser.

Years ago I read a synthetic oil life study. The study was very thorough, using different brands of oil, and filters. Amsoil came out on top. Another thing discovered during this study was shocking. Changing your oil increases engine wear. The oil changes we're done when the TBN reached a low level, and the first sample analyzed after the change always showed higher levels of wear metals. This abated by the second sample. My Subaru Forester is the first new automobile I've purchased. I need it to last a long time. I'm running Amsoil signature, and a bypass filter. I'm going to have the oil analyzed regularly, and base the change interval on the results. I hope it will last the rest of my life. I'm 63, so I've still got aways to go.

I pulled into a gasoline station and they actually asked if I wanted them to check the oil. I knew it was okay but said - sure go ahead. When the attendant pulled out the dip stick I asked him to guess how many miles I had on that oil. He replied without hesitation and said that I had just changed it. When I told him that I had almost 5000 miles since I changed the oil, he couldn't believe it.

Very good product.

I only use Amsoil. It is the best

I change my oil every 15,000 miles because it has a 15,000 mile oil filter, I could go longer if amsoil made a 20-25,000 mile filter for my car. I use amsoil for my lawn equipment, motorcycle, and now to lube and clean my guns

Get better gas mileage and longer time between oil changes

I know exactly how Amsoil will perform in my 2017, F-150, 3.5L/twin turbo. I have used Amsoil for decades and have never had an oil-related problem with any of my engines. Amazing chemistry...that's for sure.

I purchased a used 1996 Chevrolet C2500 with 341,000 miles on it. The previous owner said that he only used AMSOIL. So I drove the truck for a thousand miles then changed the oil with AMSOIL. It must work, the truck has the original engine, original transmission and the original exhaust system