Customer Ratings & Reviews

I'm city driving in a 4x4 Ford van and after my last oil change the oil was still in great condition after 15,000 miles. just used the cleaning solution so lets see how this improves engine longevity. really happy with all th products I have received.

I use it in my Subie Forester and my silverado 1500. no problems ever!

I use Amsoil Signature Series in both of my cars that are susceptible to burning oil. The 10W30 goes into my Honda S2000 and works great! Amsoil is the only oil I use in my motors and gearboxes, after trying out several different brands, I have found their quality to be of the best.

I get better mileage with Amsoil I run my 4x4 very hard and Amsoil is doing a great job of keeping it running strong

My 2004 Silverado (5.3L V8) has had a steady diet of Amsoil since its second oil change. I have stuck to the 10,000 mile interval, using Amsoil Ea filters & Signature Oil. She's about to roll over the 200,000 mile mark, and I have had no engine issues. I use Amsoil Signature Synthetic Oil in all of my vehicles, and plan on keeping it that way.

Yeah like to 25,000 my old changed

I will never use conventional again. 10K mile Oil changes, or once a year. You cant beat the quality and value of this product. No dealer or mechanic can ever persuade my to change every 3k miles again!. Get you some!

I personally believe that with the history of Amsoil and their pioneering spirit I am getting the absolute best product on the market. They have been doing this longer and better than anyone else for a long time. Can't beat the best!

Bought Amsoil for all of my cars so I wouldn't have to change the oil so frequently and for the protection it gives all of the internal moving parts. I've noticed an increase in MPG and smoothness when I drive. 2017 Civic Type R 2012 Pilot Touring AWD 1998 Civic EX

I use this in my 2005 Jimmy 4.3 Vortec. I've started using it since 30,000 km on the vehicle which I've owned since new. I love this oil. I go one full year 25,000 km before I change the oil along with the Amsoil filter. Oil is great, engine runs quiet and effectively with this brand.

Started using in my 08 Subaru saw better gas milage the car ran smoother so I began to change ever gas engines l own to amsoil. Couldn't ask for a better product !!!

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.