I called Red Line and they recommended their Shockproof oil for use in the tranny of my Yamaha Banshee which is a built for drag racing and has a wet clutch. Would anyone disagree with this or have a better alternative? The manual calls for a 10W-30 motor oil without friction modifiers. Would you expect any problems with clutch slippage? Their engineer said it would not cause slippage. I'm just looking for the best protection since it only used 1 1/2 quarts.