Anyone know the oil filter #. I would like to change the oil early to get the metal out of the engine. I love this bike and must take perfect care of it so I can get many miles out of it. Also have I read the transmission takes 10w40 as well as the engine. Thanks I need the number so I can cross it at the auto parts store so I don't have to pay 5 times as much at the steeler. Is it ready for synthetic yet.