So how many of these Goldwing owners are driving diesels?
The kicker with bikes is the wet clutch. Using oils with friction modifiers (I.E. molybdenum bi-sulfite?) is the possibility of damage to the clutch pack. M1 15w-50 didn't used to have it, and neither does Rotella T 5w-40 Synthetic. I don't think M1 5w-40 has it either, but I am not certain.
Rick Knoble '85 300 CD'87 190 DT