crankcase oil

belray gear saver 80w not the cheapest its about 9-10 bucks but it will save you the most money cause you wont be rebuilding those gears and clutch any time soon
 
belray gear saver 80w not the cheapest its about 9-10 bucks but it will save you the most money cause you wont be rebuilding those gears and clutch any time soon

That is what I use! yes a bit pricey but doesn't need changed as often cheap Type f tranny fluid! but TYpe F is ok to use and cheap.
 
Amsoil,Hp1,or mobil1 4T is what i use i dont use best and cheap in the same sentence.

Spend a few bucks and keep your quad in good shape remember speed costs money how fast do you wanna go?