That's the same Rotella-T that I used to use. But, as I've said, this bike is different... I think. I know my ST1100 is wet clutch and I didn't have issues with Rotella-T Synth. on that one, but this is the first bike to specify what oil
NOT to use. I think Synthetic is fine for the 8000 mile change and after, and also the 5W-40, but be sure what ever oil you use to check for this API circle on the back of the bottle somewhere and to choose one that
DOES NOT say "Energy Conserving" or "Resource Conserving" as these are designed to
increase slip (at least the energy conserving is, that's why it's energy conserving), which is what you don't want with the wet clutch. As I also said before... I'm still learning on this stuff. I was even considering Synthetic 0W-40 since I ride in some
very cold temps during winter months, as long as it's not energy conserving.
What ever you use, I don't believe it will void the warranty... but just to be sure.........:350x700px-LL-66dd6d
I noticed that the Mobile 1 high mileage Synthetic oil at Wally world was $24.95 or there about for a 5 quart bottle.
These are samples of what the API circle looks like... regardless what the viscosity says in the middle. Auto or truck oils that will work should be API Service SL or better (SN is better than SL). And the viscosity should be what the manual calls for (or equivalent) so 5W-30, 10W-30, 5W-40, 10W-40 should be all fine. First number is cold rating, second number is what is more important for the bikes in normal operating temp of the engine.
