What's the scuttle out there in fellow motorhead land on synthetic vs. conventional oil in our beloved Boxer engines? I've had my '08 RT since new and have recently started doing my own services. Last one (30K), I just got some "BMW" 20w-50 since I at was the dealership getting the other parts. I was looking at the motorcycle oil in the local auto parts store and was contemplating switching to Castrol Synthetic motorcycle oil, but was curious if it was really worth the money. When I first got my bike, and couple of old Beemer riders after that... have all mentioned good old conventional, Castrol 20w-50. Especially running it at normal cruising speeds and regular maintenance.
From all my years of wrenching on everything from bicycles, to motorcycles, to VWs, to helicopters... I've always learned that taking a new or rebuilt motor, after initial break-in period, and running with synthetic from then on is a great thing to do. If it has been running for years and well broken in on conventional, not much reason to switch. What's your thoughts and advice?? Thanks!!