Been running Redline products in my other bike. Quieter top end, smoother shifting, and no clutch slip. For the Spyder, I'll stick with the BRP oil for now. Remember that one oil does all for this, not only does it lubricate engine components, it has to handle high stress loads in the tranny, and have the correct friction for the clutch. If one of the big players comes out with something Spyder specific I'll consider it, but the BRP oil doesn't cost any more than the others, and BRP can't raise any warranty issues.