going with redline but i don't know what kind

 

My Honda service manual says 10w30 engine oil. My tranny has a clutch type LSD, so I put Motul fully synthetic 15-50 Motorcycle oil in mine.. It's made to run in a wet-clutch type transmission (with high gear loads -bikes have small gears and some are over 150 horsepower ), so it seemed to make sense to me! The Motul motorcycle oil has some crazy moly gearbox additives.

 

You would want redline mtl. I switched back to Honda mtf because some people say redline is bad for honda transmissions.