ah i see another one mis guided by the ever popular "our oil will boost your h.p"
seriously though, we've debated this and i think intended gave you the link, maybe should go check it out, i have yet to find actual proof that oil will boost hp or anything else. if your sled has v.e.s, cleaning those valves, etc will help, otherwise, could it be that the last time you rode you forgot how great your sled was, im not being rude, but this has happened to me. i just dont believe the oil theory. i am checking onto the subject though.