Customer Ratings & Reviews

Best oil in the business in my opinion. I've been using for years. You get longer change intervals, no sludge and great performance!

Great oil, even after 10,000 km engine runs smoother

Great oil in my V10 Ford powered motor home.

The best! Hope the product is never discontinued!

Great oil I use it in my 15 wrangler, no complaints.

out standing

I use this oil exclusively in my personally owned '03 Chevy 2500 and '04 Chevy Tahoe. The 2500 have around 250k and the Tahoe at almost 275k. Both engines run as smooth as butter.

Excellent oil love it

Goes in my supercharged wrangler and my wrangler loves it when the oil is changed and I go 6k on change intervals.

I love Amsoil products ... the XL 5W-30 Synthetic Motor Oil is a great product. I especially like the Wide-Mouth bottles ... no lag time or slow-pour with these great Wide-Mouth bottles. Every brand of oil should use these Wide-Mouth bottles. Keep up the great work, Amsoil.

This is what I use in my truck

Great upgrade to oil changes in our 2003 Envoy.

Amsoil has always products that I trust! This is spec viscosity fits all three of my vehicles. Keep up the good work!

Used for my Harley, won't use anything else.

Best car insurance policy anyone can get

Amsoil offers best protection at reasonable costs. Don't have time nor $$ for car purchases every 3 years. Get the best car and keep it maintained with the best product.

Great oil! Use this in my '17 Silverado and it works flawlessly! Recently had the engine checked over and when they pulled the valve covers it still looked like a new engine! 10/10 will buy again

I switched my vehicles to full synthetic after trying it in my motorcycle. I now buy by the gallon and switched everything to synthetic oil, differentials, transfer case, etc. Gallon containers are convenient and economically priced. I'm amazed by the amount of residual deposits that are removed during the first switchover oil change in my vehicles that are were quite honestly, very well maintained.

Truck seems to run better.

The only product I will ever use in my racecars.