Customer Ratings & Reviews

Excellent oil

I’ve been wanting to get this stuff in my 17 Sierra Denali and I’m glad I did. We get stupid hot heat here every summer and I need superior protection. I’ve been using the Costco Kirkland Oil for the past two years which ain’t bad oil for the price. Amsoil is by far the best stuff out there. I did noticed a little bit of throttle difference right off the bat. My engine runs so quite I can’t even tell it’s still on. Using the the signature series I know I can go a lot further now between oil changes. The filter you get with the kit is by far the best one out. It’s made very well. Will change my transmission fluid with the Amsoil fluid when I do my next change. Highly recommend.

Have a 21 ss camaro oil options were thin so decided to try this product. Only have a couple miles on oil change but so far so good

This is hands down the best oil I have gotten for my Supra. Oil flow is great and pressure is exactly what you would want. 10/10

I was recommended do use this oil in my truck by my mechanic I was kind of hesitant because of the cost of the oil. But once I started using this all in my truck, it is amazing. The difference in the performance is night and day.

Been using ams oil for a few years now would highly recommend all their products

I wouldn’t trust any other brand. I k ow my engine is performing and happy on the track with this product in there

This is some good stuff! They stand behind their word and testing

Been using Amsoil on my 2007 Chrysler Town and country for quite a few years now and I am very pleased with my car's performance.

My truck runs smoother now since I’ve started using Amsoil

This oil is just as good as all their signature series oils.

I own two Hyundai Elantra N’s and changed oil on both at the same time. One had factory oil the other Amsoil. Sent samples of oil from both to Speediagostix for analysis. Reports came back showing superior protection from Amsoil and I am getting 1 mpg better with Amsoil. The oil stands up to its claims.

I’ve been using Signature Series engine oil in various viscosities for about twenty years. I change my oil at 15,000 mile intervals and have zero engine problems and at 100,000 miles on most of the previous cars and trucks I have never had to add any oil between changes. The inside of my engines are as clean as new, and there is no evidence of the brown varnish that coats the internals of the engine that is evident with most engine oils these days.

Though it only been a few hundred miles. I’ve noticed at least a 5% increase in fuel economy. An overall reduction in engine noise from engine start up to warm up. Will continue to use Amsoil till this car hits the bone yard or a really good trade in.

Great oil, have used it in for cars!

Really like this in my older Chevy truck to extend the life of my engine. Highly recommend.

It's the best oil that I've used I tried Mobil one and it's okay but after using Amsoil and looking at the color of both oil Amsoil was lighter than Mobil one after 5,000 miles on both it was the final decision for me Amsoil all the time.

I have been using the signature series almost 4 years on everything I own. Small engine, big engine, and the fuel storage. And it's never let me down in any way. Way past my expectations and more. I will continue to use these products forever

I've been a preferred customer for about 5, 6 years now been using Amsoil for 15 years All their products are great I use them in my Subarus used them in my Toyota's my Hondas and my son's Corvette They make very good products to stand behind every one of them very good products.

Happy