Customer Ratings & Reviews

Superior protection, motor runs smoother with Amsoil. Stays cleaner than other oils used.

I've been using this Signature motor oil now for a couple of years in my 2003 Ford Explorer & my 1999 Lexus ES300. Both cars running great.

Great oil for all my vehicles,I have a GMC Sierra that has the cylinder deactivation and I want to do everything I can not to have any issues. I only do about a thousand miles a year and I change my oil every year with my inspection I use 0w20 in my pickup and 5w20 in my Cadillac never having to add oil between changes very happy with amsoil products

Impossible to beat…PERIOD

I’ve continue to use AMSOIL Signature oil in all of my vehicles! It exceeds all my expectations. What a fantastic product!

Used this product since the van was new. 210,000 miles later still doesn’t use a drop of oil between oil changes.

only oil and oil products i trust to put in my wifes car

The extended drain interval makes it affordable. I would not do an extended drain interval with any other brand. Amsoil is the only lubricant my mechanic recommends because he has seen it all after 40 years of servicing everything mechanical. He is somewhat retired but still gives advice via a radio program. He warns against the inadequate lubrication car manufacturers are selling with lighter weight oil. He recommends Amsoil 0w30 to replace anything that is thinner. Works for me...

Best oil you can buy

Two things, what ever that first thing is and Amsoil, it only cost you money by NOT using it!! Final answer. I use it for everything I own including my Harley. Thanks for your greatness 🙏👍

The best oil you will find

Best oil in the market.

Was using GM recommended oil in C7 Grand Sport noticed oil pressure drop off during hot track days friend uses and recommend Amsoil although late in season ran 2 more track days oil pressure remained steady did not drop off as much

A+

Best oil i recommend

It’s my first time using this oil , and I hope the best performance for my truck, I’m driving 2024 Titan sv

Been using Amsoil for 20+ years and if there was something better I would use it, but there's not!

Great oil for your engine with outstanding protection!

Used on my ram 1500 5.7 and i couldn’t be happier, every once in a while i check the dipstick and its still golden which is crazy

Great oil, extremely great quality and I am very satisfied and will continue to purchase amsoil.