Customer Ratings & Reviews

I've used amsoll since probably 1990 in my mowers my pickups my tractors. I swear by the signature series it's done wonders for me and Increased gas mileage you have to try it for yourself to see the picture

Hold up to heat and high horsepower well withought having a high viscosity in cold weather!

Been using amsoil for 10 yrs would never use aNY other prout ever. Noticeable mileage increase and smoothness. I run the signature series 5/20. Amazing oil that's all I could say.

I have started to use this product on my 99 town car a few months ago and I have already seen a difference in just how to engine stays cooler and is able to drive a lot smoother. I would definitely recommend this to anyone wanting a better lubricant for their engine and to have better performance out of anything they have.

Other oils just wouldn't hold up. Would burn off and be black by 1,000 miles. I have work trucks, daily drivers, and toys. Work as a technician and never seen oil drain clean after a normal service. Except Amsoil after 10k looks good as new.

I now use AMS in a My has powered equipment

Amsoil have provided my street and race motorcycles with excellent protection. Recently tore down my old race bike which has 30,000 miles on it of which 7000 are track use. Measuring all major parts and the engine shows no wear, factory cross hatch is highly visible in the cylinders. Great product!

I have used Amsoil for 25 years in all my vehicles. I change my oil and filter once a year, which is about 15000 miles. It is a time and money saver.

I use all Amsoil products in all my vehicles and yard equipment. I even have them change it on my Volvo XC60 that is under warranty, where they recommend and use another product. I always tell them to use the Amsoil oil I bring instead.

I've used other upper end brands (Royal Purple, Mobil One, Pennzoil) and their performance can't compete with Amsoil. I'v been using Amsoil products exclusively for past 10 years and I am extremely satisfied with their products and their customer service. They are both excellent. Call center employees very knowledgeable about their products. I would definitely recommend their products above all others. Their commitment to quality and performance is second to none.

great product and now a longer interval change at a fair price. what else could you want !

I have a 1998 Chevy Suburban with 230k miles. Its whole life has been 100% Signature AmsOil. The motor still has 155-160 compression in all cylinders. It still gets "like new" gas mileage. It still pulls trailers like they aren't there. Simply impressive. Oil changes every 10k miles (since I pull trailers). Compared to conventional oil every 5k, it is breakeven in total cost - (after discount from AmsOil). PLUS - I only change the oil 3x per year instead of 6x. In fact, I love the fact I can change oil in fall and not again until spring. Skip right through winter. AmsOil products are worth every penny.

I put this in my 1996 Chevy K1500 with a 5.7. Slight tapping on startup disappeared, and i gained about half a mile per gallon. Not bad for a motor with 200k on it. Always happy with all Amsoil products, it's all I run.

I've used this for 10 years since I bought my F150 5.4 with 50k miles. This year I was returning from vacation and I noticed the truck seemed low on power. I brought it to my mechanic and he found 1 bearing gone on a roller rocker. Rocker shaft destroyed. 3 collapsed lifters and a broken in half cam chain tensioner. His only explanation as to why the engine still ran was the oil. He said Amsoil is Motor Magic. We have a new engine now topped off with all Amsoil products!

Simply the best bang for the buck. I have oil analysis to back it up.

I've been buying amsoil for 15 years. I've always been satisfied with all of the products and I've never had an oil related engine problem. Typically my mom goes up as well. I recommend Amsoil to my friends and they buy. Honestly there is no longer any reason not to. Synthetic oil is more expensive at your local Auto parts store.

Hands down the best oil on the market! Will never go back to the other stuff.

I use Amsoil in all that I own from vehicles, lawn equipment, generator and my motorcycle. Everything that I put it in runs great and the oil runs/ages very clean vs others I've tried. I use oem filters but with Amsoil the oil just doesn't seem to wear out like others if that makes any sense.

Excellent product.............................

Amsoil is the only thing I will put in my Vehicles. Why waste Money on oil that could possibly reduce the lifetime of your engine? Spend the few bucks more and save money in the long term.