depends on how much money you got ?..lol..j/k..i just put some oil in mine..baught it at the honda dealer..i just restored my trx350d 4x4..and i got her the best..pro honda hp4 i put in the engine..as far as the differentals go..a good 80w-90 is pretty good..as long as it's 80w..you should be ok
Valvoline motorcycle oil seems to be the most populat oil around here for atv's and cycles. what do you guys think of that? valvoline as i know from lots of research is a good brand. i prefer shell/penzoil but the ole V isnt bad.. i use Valvoline 10w-40 MC oil.. use valvoline durablend 80w-90 for the front and rear.