Customer Ratings & Reviews

no engine failures at all,several of my vehicles are 200k plus.

160 mile round trip commute, high mileage car. 10,000 mile change interval. Doesn't let me down.

I use Amsoil in both vehicles

Have been using this product in my 2005 T Bird since I purchased it new in May 2015. I use AmsOil products in all my vehicles.

I have been Amsoil in my Harley for 10 years and now use it in my Subaru, I use it because it's high ranking protection. That''s what it's all about.

Noticed my two Honda's got substantially quieter after changing to amsoil. Less burn off of oil also.

Don't use anything else

I use in all my cars

Great all around

Using it in my 2007 magnum. Great for my driving habits and mileage.

Good product not any more expensive than other synthetic oils

I've been using amsoil in my rotary motor for many years now and it has shown to hold up well to the heat the 13b produces. A recent engine refresh showed now signs of premature oil related wear.

I'm a trucker by trade and I was traveling through Pennsylvania when a Amsoil distributor passed me. What caught my eyes was the slogan, "The first in synthetic, the last motor oil you will buy." I got the distributor attention and he pulled into the rest area and to make a long story short, he placed his hand on his engine, I was completely shocked and sold. It is the best.

I do lots of stop and going here in town with my 2011 F150. Give it a try, you'll see and feel the difference with the performance

Every spring I use Signature Series in my cars and motorcycles. Before the next spring the cars will need 1 to 2 quarts added. The XL oil provides an economical answer to a short term need.

Use amsoil in everything.

Worry free oil

I use XL in my 2013 GMC Sierra and My 2011 GMC Terrain, The 5w30 keep them working like new!

Both my 2001 honda accords seemed to run smother after first oil change with amsoil

I've used nothing but Amsoil in my vehicles for many years. Wouldn't change.