I’m my 2002 Kawasaki Ninja zx9r I used M1 4T 10w40, valvoline synpower 20w50, Exxon superflo 10w40, Rotella 15w40, 5w40, and probably a few more I can’t remember and never had a problem with shifting or anything and have the UOA’s posted. The only oil that gave back not that great with uoa was Brad Penn 20w50, but that was **** near a 60 grade
Honda crf250r-Exxon superflo 10w40, Rotella 15w40, chevron delo 15w40. Never a problem
Honda crf250r-Exxon superflo 10w40, Rotella 15w40, chevron delo 15w40. Never a problem
