Customer Ratings & Reviews

Definitely seems to clean some sludge buildup I had from other oils when looking in the valve cover area.

Very happy with the Oil I receive from Amsoil, and always surprised at how fast they get it to my doorstep. I would recommend Amsoil products to anyone that wants to get the most from there dollar.

Owning antique and street rods, the engines are very expensive to build. I wanted the best motor oil available. Extensive research led me to Amsoil back in 1981. This was when most synthetic motor oils did not exist. After disassembling some of the engines at 10,000 miles I found that the wear on the camshaft and crankshaft was almost non-existent. I continue using Amsoil today. I have no reason to change.

Next day Delivery was excellent

Just swapped over to Amsoil. 2008 BMW 335 xi Twin Turbo coup, engine runs smoothly and quieter, 96k miles.

I have used Amsoil for a number of years and in a number of vehicles and have come to rely on what they do for the long life of motor vehicles and would not consider changing that view.

Use this oil in two of my vehicles and noticed improved performance all around over the years.

AMSOIL is an excellent product and I use it in all my vehicles and the boat. The signature series 0w-30 met/exceeded all the specs for my Alfa Romeo Giulia, which is what this most recent purchase was for. I love the shipping from AMSOIL it’s very fast and at a reasonable cost. I would definitely recommend going with AMSOIL for your vehicle even European spec ones. The signature series is the best oil out there right now.

Love this oil! Car runs a lot smoother than before!

Good stuff

Im a long time user of this Signature Series oil. I drive my cars until the wheels fall off so for me Ive had several vehicles that went 200K plus. For me it's usually something unrelated to the powertrain that causes me to get rid of the car/truck.

Best oil I have used.

I just recently accomplished the oil change where I used AMSOIL. Don't know how to tell if it is better than competitors. I do know it was harder than heck to get someone to do an oil change with me supplying the oil. For this reason alone, I may not continue with AMSOIL. If you change your own oil, I'm sure it would be fine.

Using Amsoil signature series synthetic 0w20. 1.5 liter turbo engine is demanding, my perception is that this oil will stand up to the rigors of this engine. Have been running Amsoil in my '17 2.7 liter twin turbo f-150 about 4.5 years with no worries.

My brother is a great ambassador of your product, My order value $450 -didn’t show up -re-ordered they customer service I was told she/Amsoil would make it right by sending me a gift. -didn’t receive any acknowledgment and when I recd the new order a container of oil had saturated the cardboard box. In closing , I don’t expect to hear back, but Your welcome

I haven't even considered another oil since I've found this. If you pair this with their filter it will double the life of its competitors

I have been using Amsoil products for 20 years. My 2012 Mazda CX9 has 136000 miles. Once a year, oil change and EA filter, runs like it did coming off the dealers lot.

I used to use Castrol oil until a friend of mine recommended Amsoil. This is a great quality oil and the only oil I use in my vehicles. Highly recommend

Best oil on the market. I get better gas mileage, my engine runs cooler and quieter. Always fast shipping that is packaged and protected second to none. Sign up to be a preferred customer and save a lot of money.

I want my truck to run forever trucks are very expensive