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.
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.
I always used the recommended lubricants on my side by side until a friend recommended Amsoil to me.
Gave it a try and my oil has never looked better.
I now use Amsoil in everything I own.
PS. the 2 stoke Saber is amazing.
So far , I am happy with the oil. The only problem that I had was with the delivery time getting my order, but after calling and emailing Amsoil you guys took care of it. Customer service resent my order without me knowing and when I got your email about my order , I received my order and then I emailed C.S. about this and they told me to keep it because the trouble that I went through.
Thanks
The owner asked me to service his quad, and fix a couple problems while I'm at it (oxygen sensor and fuel injector sticking open).
Used the ATV-UTV 10-40 from AMSOIL and this quad seems to run just a little smoother.
Love AMSOIL products, it's all I use in my vehicles.....period.
My UTV works hard in the WV mountains and I depend on the superior protection from wear and tear with Amsoil products.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
5W-50 UTV Oil
By 
Bill, 
a 
Verified Buyer 
from 
NE NC 
on 
December 14, 2023
I use this oil in my Cub Cadet side-by-side. It does a good job of helping stop fuel dilution of the oil (b/c of fuel injection). It allows me have a more normal oil change interval because the oil level increases over the interval and this quality oil has helped remedy that issue. This oil even when contaminated with gasoline still comes out of the engine clean at oil changes.
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