Originally Posted By: bmwtechguy
I am basing my comments on the fact that his bikes could benefit from the higher antiwear additive levels that are found in the bike-specific oils, plus the fact that he can safely go much longer on those oils as an added benefit, at least as perceived by me.
You can look at "bike" oils such as Honda G4, Yamalube, Valvoline Motorcycle, and Castrol 4T, and they dont have really a better add package as found in your average 10w40 "car" oil. go to the VOA and UAO sections and see for yourself.