Originally Posted by bikerfish
I've been using any good automotive 20w50(10w40 if riding in winter) from the autoparts store or wally world. have over half a million miles on various airheads, never an oil related problem. if you run synthetic, you will have new oil leaks you never had before. these are simple engines, no need for any special oil.
Quit talking sense. Stop right now. My baby needs the best money can buy or else it will grenade immediately.