Customer Ratings & Reviews

I won’t put anything else in any of my cars. Always works flawlessly. Nothing else needs to said because it just works. Worth every penny.

The product's from amsoil are the best in my opinion. I run it in all three of my vehicles.

Best oil on the market. Worth every penny. My grandfather used it and got me to use it. Glad he did.

Simply the best oil that you can put in your engine.

Used AMS oil for years, so has family! Never been disappointed!

I run this oil in my personal truck Keeps her purring

I have always wanted to use the best products available. From everything that I have watched, read, or heard, Amsoil is the best product. I have had no problems with my 2023 Ford Coyote engine. In fact, an individual that is a car enthusiast wants to buy my Coyote in the future. He knew that I was using Amsoil in it now. He wants to replace his older Coyote in his coupe. Sounds like a resounding referral to me.

I use amsoil in my c7 Corvette and thought I'd try mobile 1. The amsoil gave me more miles between oil changes then the mobile 1. 7200 for the amsoil and only 3800 for the mobile 1. I'm sticking with my Amsoil 👍

The glued on seal needs to be removed, pieces of this seal can come off and go into your engine while changing oil. Requiring you to filter the oil when filling the engine. This seal is not on the quart bottle, I will be buying quarts from now on.

I have not put this particular oil in my vehicle yet, I have used Amsoil in previous vehicles that I owed and I was very happy with the performance of the vehicle while using this oil. I know it costs a little more, but I think the results speak for the product.

I've always used valvoline with all my vehicles. Ever since I bought my 2019 silverado, every cold start i hear my lifters over my exhaust. After using ams oil lifters are much quieter. I can't be more greatful with the quality of there products.

Run my BRZ hard everyday. This oil definitely stands up to the heat. I sit in a lot of traffic. Keeps my subie cruising along. I use this oil in 5w-30 @ the track. Great oil.

I have been using Amsoil products for over 20 years. It is all I will use in my newer vehicles. I don't go for the long extended service intervals typically 5,000 mi. But should stretch it to 7,500 or 10,000. With a filter change halfway. You would not be disappointed with their oils

Great oil

I've seen the testing data and reviewed testing video comparing this oil to Royal Purple, and others. It is by far the superior performer. Nothing but the best for my baby! Never disappoints.

First time to use in my vehicles, will let you know more in the future how I like it. Also I do use it in my small equipment and no problem with it so far. Thanks.

I noticed the smoothness of the engine almost immediately. I used Castrol for many years and I noticed my engine was sluggish but since switching to the signature series from amsoil, I'll never use anything else again!!

Amsoil Signature Series Oil, is indeed at the top of all oils, it’s made my engine run much smoother and no longer burns any oil. I’ll continue to use AMSOIL in all my cars and recommend it any day!

I use this once a year and it works great.

This oil gives me the confidence to run the 10,000 mile OCI recommended by my Honda maintenance minder.