Engine Oil

[nwi45]

I have a modded 250R and I was wondering how much of a difference 75, 80, and 85 weight oils are. What is probably the best bet? Thanks.

[wringmaster]

Are you gonna run it in the summer....Winter. The colder weather you run it in the thinner oil you want to use. Same thang with engine temp, if your gonna give it h***, use a thinner wait also