It's not a good idea to use Honda oil or Yamaha oil or whatever. They do not produce the oil, they contract it out to the lowest bidder and slap their names on it. So you pay more money for a cheap oil, you are better of using amzoil, golden spector, bel-ray or whatever.

 

I know that Honda, Yamaha ect don't make their own oils, but PLEASE, do you really believe that they just buy from the lowest bidder?? That's insane! Show me some proof of your claim...then I'll believe you. They just buy from the lowest bidder....sheeze[img]i/expressions/face-icon-small-disgusted.gif[/img]

 

backt ot he 1st question the 20w40 is made for oil injected 4 strokes,, its a higher performace stuff.. it says it in dennis kirk ne way.. should be fine runnin it in a rappy.