Customer Ratings & Reviews

I run this oil in my 2021 Subaru WRX STI. Obviously I have no proof that its working better than any other oil but it gives me a great feeling putting quality American products in my car. Growing up running motorsports we would always use Amsoil and it always performed in that application so I continue to support Amsoil now that all my toys are gone.

I use AMSOIL in everything and recommend to all of my customers.

Everything is fine. I order another one.

Good stuff. All i can say

I went on a quest for the best. Before I tried Amsoil, Pennzoil Ultra Platinum Plus (not the regular Platinum Plus). Amsoil blows that away at a comparable price. If you are in extreme cold, use the 0-W30. For those using 0-W20 in non turbo US models, I highly recommend using the 5-W30 as the rest of the world does. It will only cost you about .1 MPG at 25MPG -- and your motor will last longer. Unless you are in extreme cold weather, then you should use 0-W30. Here's where Mazda felt it was more important to get the extra .1 MPG than making your motor last beyond the warranty.

I’ve been running AMSOIL Signature Series for about 15 years now in everything I own — Ford Ranger, Chevy 3500 van, Chevy 2500 van, BMW X3 and my 2025 Ford Maverick EcoBoost. This oil flat-out works. Engines stay clean, oil tests come back great, and it holds up way longer than anything I ever bought at the parts store. I change it every 8500–11,000 miles with their filter and never worry. Cold starts in winter? No problem. Long summer highway runs at 80–90 mph? Still smooth. Even my turbo truck barely uses any oil between changes. If you want your engine to last, quit messing around and use AMSOIL. It’s not cheap, but neither is an engine rebuild.

Best oil I've used definitely can feel my engine run smoother, I'll be using this oil for all future oil changes

In the past I was a long time user of Mobil 1 and after reading many articles about the high quality of Amsoil I decided to try it. I will never use any other motor oil!

Great oil it is what it suppose to do keeps the engine running smooth and clean for a long time..

I grew up on amsoil. My father grew up on amsoil. His father grew up on amsoil. I have been happy with everything I’ve gotten for my C6 corvette. Shipping time is unparalleled. Worth every penny if you love giving your car the best there is.

Delivered fast. Packaged neat. Used the funnel it came with. Now I have the peace of mind knowing I’m running the best that’s available for my truck.

I have several vehicles and always use amsoil. I have a car with 300000 miles. Amsoil since new, can’t even hear the engine run it’s so quiet! That says it all!!

I wouldn't use anything else!

Simply the best.

Best oil on the market

I have been using this oil in my Jeep Grand Cherokee since it was new, 97,000 mi later still runs great.

I only use AMSOIL products in all my vehicles. All I can say is if I put 6 qts in 5000 miles later I get 6 qts out. No other oil I have used does that

Took a little extra time to get the gallon jug, but I guess that means they sell enough that it's hard to keep on the shelves

I just recently switch to amsoil for all of my fluids and I absolutely love them and I can tell my truck does too!!!!

From all my research AMSOIL is the best period when it comes to oil. I will use it from now until I die for all my vehicles.