hey guys and gals... i want to do my first oil change ever. now i've had a pretty good look around and i've even looked at the workshop manual and i still don't know what oil i need to use. the bike is a Honda Spada VT250, its done bout 40000k's. what oil do i need??? this probably is a really dumb question...but i still need an answer. haha. thanks guys. cheers nick.