Customer Ratings & Reviews

I run this 10W30 in a conventional small block Chevy producing around 500 hp. It’s my regular driver in a 10. The oil gets abused with the heat here and the extremely dusty environment. Amsoil handles the demands of this environment without any problems. Engine are always clean as a whistle whenever I open them up. Really great products across the entire line of motor oil.

Only oil I'll use in my vehicles.

Been using this product for over 10 years in my Honda Fit. Absolutely no problems.

USA products, Amsoil is #1 motor looks new. I highly recommend only using Amsoil

very happy with my amsoil products, i did a full service on my vehicle with all amsoil, the car noticeable runs smoother, and quitter and has improved my fuel mileage by 2mpg. this stuff really works!

Run it in my mustang.....works great no issues

I have been using amsoil for 10 years now. You can't get better protection at any price.

The Synthetic 10W40 XL Motor Oil, is a great oil, which works perfectly for my higher mileage xc70

Only oil I use!

this best on the market full synthetic 10-40 w .

Great value for a superior oil

This stuff works great in my jeep. Runs nice. Also use in my motorcycle V-Rod feels smoother and idles nice.

Great oil. I use Amsoil 5W30 oil in my 98 z28 Camaro and 2003 Chevy s10.

I've been using this for our turbo vehicles for years. (15 WRX,18 F150 twin turbs). These have a habit of fuel dilution, a I trust this oil to last the 6 months or 4k miles. Can't say enough good things.