what oil should i run in my raptor?
thanks
jeff

 

I use Amsiol 4 stroke synthetic in my Raptor.

http://www.amsoil.com/StoreFront/aff.aspx

 

ditto......Amsoil 4 Stroke ATV Synthetic

 

If you change oil as often as I do just go with a quality dino oil, I use yamalube but any similar will do. Personally with all the crap that can float around in my oil from the clutch and other components I like to change mine more often. One of the benefits of synthetic is longer life, something that is irrelevant to me. And the less friction they cause in the cylinder the less friction they'll allow in the clutch pack, friction modified or not.

 

I have been running plain old motor oil, Castrol GTX 20W50 for 3 years now and it works great. It is cheap too compared to motorcycle oil, which is good since I change my oil about 2 times a month on average. I always put in fresh oil before a race and change it again soon after, I also change the filter every other time and use either a bosch 3300 or fram tough guard ???? dont remember the # off hand but I like it better cause it has the grippy stuff on the end of it so it is easy to get back off.