Customer Ratings & Reviews

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.

Best oil on the market change it every year on my 2014 Silverado Crew Cab LTZ 28,890 original miles

Same as before

I use this light oil in my Tundra 4.6L engine, and it seems to work well. Being 100% synthetic oil, really boosts my confidence in using this in my Tundra.

I have used this oil since 1998, and have been using the bypass filter system as well, with great success! My cars always rust out before the engine wears out. Two of my cars have had just under 600,000 kilometers and the engines run like new. They always start great, run great. Too bad the body rust destroys the cars. Winter sure is hard on cars.

I’m using AMSOIL for two years now and I’m happy with the oil quality and filters. Unfortunately many times they’re out of stock on filters but we try to work it out. Other than that is a great brand

Best lubrication products ever. I use Amsoil in all my track and cars. I changed my oil at 1,000 miles in my new RAM RHO with the Amsoil Synthetic oil, runs great.

Have never had a motor issue in anything I've ran amsoil in .

I have been using Amsoil full synthetic for years and it has proven to be a superior product

Amsoil is top notch oil. I will be no means stretch it to what they say it last but will be very confident for the 3k-5k that it's in the truck.

My c8 requires the best OW-40 oil and this is it..amsoil is pure synthetic and that’s what I wanted.. I change every 5000 miles. I don’t have any issues,it’s the only oil I’ll ever use.runs cooler,saves battery life.

My car is a 05 Sequoia and i run 5/W30 Signature series motor oil. It does not use oil or leak oil,and the oil pressure is great. The best product you can spend money on.I dont look at price i look at the product what it does for my SUV.Thank you AMSOIL great stuff.

I've been using Amsoil Signature for over 15yrs on my daily drivers and track cars. I use it where ever I can...motor, diff, trans etc. and it has never failed me. My UOA always comes back good and my internal engine parts always look clean. Of course I do my changes every 5k - 7k miles depending on how I drove the car. On the track the Dominator oil helps to keep the motor cool, which is a good thing. I change out from 0-20 to 0-30 when the weather changes, and soon I'll be needing their Hybrid oil 0-8, which on YT most posters will say you can't find this 0-8 oil, only at Walmart and it's Mobile 1 brand...WRONG! Amsoil has the 0-8 Hybrid oil. Their oil is even good for GDI engines, which most people don't even think about and will use the cheapest oil they can find. Amsoil is your multi-vitamins for your car!

This is the only oil i use in my cars

Been doing my own oil changes for over 10 years, best oil I've ever used and will never use any other oil!

I’ve been using this motor oil for years and it’s worth every penny. If you want your engine to run well and last, amsoil is the best. No regrets.