No, I'm not saying that, sorry for the confusion. What I meant was this: in all my cars and pickup trucks and my dry clutch R1150RT, I've been using Mobil 1 for the past few years. Now that I have the Spyder with its wet clutch, I was reluctant to use an automotive Mobile 1 oil; so I chose Rotella T6 instead. Based on what
@old Timer said, I'm
thinking about using the Mobil 1 5W-40. The 5W-40 is not an energy conserving oil, it does not have friction modifiers, and so it should be safe for a wet clutch.