Customer Ratings & Reviews

Great oil fast shipping! A+++

Have run this oil in my Mule Pro for over 6 years, not a single engine problem, engine runs smooth does not use a drop of oil between changes. Great product!

Have a 2000 Suzuki 500 and want the best for hard usage

The best oil 🛢 for all seasons. And good for winter cold start ups.

AMSOIL is a great product for atvs, my Honda rubicon deluxe shifts a lot smoother and runs a lot quieter than factory motor oil. I will definitely be using AMSOIL for every fluid change.

Great product. Have used it before. No complaints

good product

I use AMSOIL Synthetic Lubricants in every machine I own. During the last 50 years (I'm 68 now) I have never experienced a wear issue with a Gear Box, Transmission, Transfer Case, or Internal Combustion Engine.

great product been using it for years. web site could be a bit more user friendly.

I've been running this oil for years. Far superior to the stuff sold by the OEM

The 10w40 is doing a great job I will always run AMSOIL in my UTV along with the filter and it was quick service to receive the product.

Put in my pioneer 700-4, shifts a lot better. Thank you amsoil

Been using AmsOil for several years now. Love there products, they do make a differnce

Been running this in my Polaris sportsman front and rear for just about 1 year now. About 300 miles with a mixture of high speed road riding on 3 poker runs, a lot of riding around the yard with my daughter as well as plowing, works good with zero issues.

Perfect for my Kawasaki Prairie

Honda talon loved this stuff. Changed oil prior to Moab trip and it purred the whole time

Glad I purchased Quad running cooler

Amazing product run it it in all my sleds and dirt toys

My 1999 Suzuki Quadrunner 4-wheeler is mostly used for farm chores, especially as a herbicide sprayer. That involves hauling around a 25-gallon tank in low range and low gear and a lot of stops and starts over at least a 4 hour period of continuous operation. My dealer recommended using a 10w-40 synthetic that they carried, but it eventually got hard to find and became very expensive. I never had a problem with this oil. However, when I could not obtain it anymore, I talked to an ATV mechanic and he recommended using a particular name brand of regular engine oil. I tried it but had really poor results. Poor shifting, sticky clutch plates and vapor lock due to excessive engine heat were just some of the problems. I made the next oil change using Amsoil 10w-40 ATV oil and a new OEM filter and the improvement was instant. Smoother shifts, no more transmission creeping at idle and no more vapor lock.

Good oil, changed from R.P to amsoil, few dollars cheaper as well. Seems to be good oil.