I always thought that if the oil didn't had the "Energy Conserving" logo it was all fine. I've seen many SJ oils without that logo, and some others with it.Redstar11 said:First off, you need to make sure you are not using an "energy conserving" automotive oil in your motorcycle. These oils are labeled with an SJ type service duty. It contains friction modifiers which reduce drag on moving components. However, in cars, this oil is not used where friction is necesarry I.E. CLUTCH. When using an automotive type energy conserving oil in a motorcycle, the oil is used throughout the entire crankcase and transmission. It will many times cause the clutch to slip because of the added friction modifiers. Use an appropriate wieght motorcycle oil, or an automotive oil that specifically lists a service duty of SG or SH on the bottle.