Customer Ratings & Reviews

My Jeep just surpasses 225,000 miles and the engine pulls like new! Recent borescope to check for a possible leaking head gasket showed little to no wear.

I have a 2014 F150. Since Ive been using Amsoil, my truck has been getting around 20 to 21 mpg on highway. Before I was getting around 18 to 19 mph average on highway.

I just rebuilt the motor on my 2003 WRX and have used only this oil after breaking it in. This is all I'll use on my car moving forward. Cold startups are a breeze and the car feels much happier.

Been running this oil now for about 2 years, I track my car once a month and oil temperatures get a little warm. I recently had my used oil analysis done by a third party and after three track days and Camarofest the oil was ready for more. It cost a little more, but for me it is worth the piece of mind on the track.

First time using it in my truck but so far so good

Best oil on the market for long lasting protection. The prices are getting a bit much, please stop raising them.

The only oil I use on all of my cars

Best oil on the market.

This oil has been the best I’ve ever used so far, been in the car industry for 12 years, first As a mechanic and now as a service manager. The quality of the soil is unmatched, would recommend to anyone

Have been using 5w30 Signature oil and oil filters for my C6 Vette and Ford SHO , plus my 2020 King Ranch 3.5 twin turbos. Best oil I have found! Never have I had any issues

I absolutely love this oil. It provides superior protection and outlasts the previous synthetic oil I used. Virtually no metal particles visible when do an oil change in my car. Like the old saying goes you get what you pay for! Well worth the money.

Amsoil products never disappoint

Been using it in everything I have with an engine for.many years.

It works just like how oil was intended to work

Bought a '88 iroc and wanted to start the process of changing the fluids to the best I could get and Amsoil is the best in my opinion. I use all the fluids in my bike from amsoil and I found a big difference. Specially since its a '92 Harley that's air cooled.

Mon moteur ronronne tres bien avec la signature

High quality and last a long time. Change the filter every 3-5K miles and the oil just keeps on going. Internal component problems having to do with lubrication just go away, and the engine is cleaner inside. I change at 15K, but going to 25 has not cause any problems.

I have been using Amsoil Signature Series oil for many years. I believe it is the best synthetic oil made and have great confidence that it provides the best protection for my vehicles.

Great product yes it's pricey but you get what you pay for. No it's not for everyone but I only change my oil once a year so it's worth the extra money knowing that I'm getting the best protection available for my engine.

I was introduced to Amsoil some years ago for my 2007 Chrysler Town and country and I've been using it ever since. I can feel the difference in my ride and the engine runs so much smoothly. I'm very satisfied.