I have been using Amsoil for many years in my motorcycle and GMC 2500, I don’t feel like I need to worry if I miss oil change. I believe in Amsoil products, never had any problems

I am the owner of a 2002 Silverado 2500 Duramax which I purchased new. It now has 319,000 miles behind it and does not show a sign of quitting. It has always been serviced with Amsoil since it was new, and does not to this day consume nor leak a single drop. I have maintained a schedule of oil change at 16,000 mile intervals and have no notion of selling or trading. GO AMSOIL

Great oil only oil I use in my diesel truck

Second oil change with Amsoil. Engine runs much smoother fuel mileage increased. Excellent oil.

I started using Amsoil just over a year ago, and I have been absolutely blown away by its quality, and the customer service! I have been using the OE line exclusively, with nothing by great results!

I started using Amsoil just over a year ago, and I have been absolutely blown away by its quality, and the customer service!

I have used this in my 08 Silverado 2500 6.0 Vortec for years . I lost a radiator hose on the interstate and didn't realize for quite awhile . Pulled over ,called my mechanic and explained that I had just toasted my engine . It was HOT ! He called me the next day and explained that with 200k the compression was great in all 8 cylinders and asked ,what kind of oil do you use? When I explained that I have always used AMSOIL, his response was no matter what the cost it just paid you back and come get your truck . 250k now no problems

Love the products. This time it took forever to get my oil I started to get frustrated with ups.

Have used Amsoil for years. I’m very satisfied with the products!

I've had two oil changes using OE and it works just as well as the XL or Signature.

Both of my Subaru’s take full synthetic 0-20. They purr with this oil and have had zero issues with them.

Do my own oil changes saved over a hundred dollars on my 2017 ZL1.

What I like about this oil is you can tell from the very first time you use it that there is a difference in the way your engine starts on cold mornings and the way it just runs. I highly recommend amsoil and use it in everything I own.

What I like about amsoil is you can tell a difference with your vehicle the very first time you use it. Makes a big difference in the way my Durango runs and starts on early cold mornings.

It's a high quality product for the price and the shipping is very quick.

Excellent engine oil. My cars start a lot better now in the Minnesota cold weather.

I have 2 honda crvs. Since I started using amsoil oil. My engines are a lot better now. I love it.

The best oil on the market.