http://rotella.com/qa/answerresult.php?rowid=169
"Motorcycle gasoline engines may not seem in the same league as the big displacement diesel engine under your hood, but they share some of the same lubrication requirements. So yes, in many cases, a premium heavy-duty universal oil capable of serving both diesel and gasoline engines is the best choice for your bike."
Of course, this is Shell marketing material so maybe it's not the most trustworthy source. Still, I think if Shell felt there was a problem they wouldn't make these claims due to liability concerns.
More importantly to me, there are a lot of other riders out there now with tens of thousands of miles on Rotella synthetic and no reported problems.
How many people here have actually ever had an oil-related failure on a motorcycle? Generally speaking oil-related failure shouldn't occur before 100k miles on a modern engine, and most of our bikes are never going to see that kind of mileage.
I say just use something that won't damage your wet clutch and change it regularly. Beyond that it's probably not terribly important what you use.
Linear Mode
