The Rotella-T Synthetic is in the Blue jug. The non-syn is in the white jug, and now they have a newer Rotella out in a white jug also, and I think it would be okay to use, too, but I do not believe it is even semi-synthetic, and I do not recall the viscocity.
Check the Rotella website for more info on that one - it is intended to help the truckers meet the new EPA guidelines, but I'm pretty sure it still does not contain any friction modifyers that would be harmful to wet-clutch operation.
I have not checked the Rotella Motorcycle Forum lately - I need to go see what's up...
I'm sticking with the blue jug though. My last oil sample results came back better than ever. I think she finally got broke in at about 25k miles!
