buzz286 said:unless you have some crazy Idea of running the backroads,between snow storms,,,,look at your dip stick..vintage honda lumps spec 10w-40.,,,,.50w has been known to blow out clutch push rod seals......nu gold(CHEAP) crappy tire 10w-30...for the first hour run in on your rebuilt engine(idling).......then dump it!!!! thinner oil will help the rings and pistons to seat faster!