LOL...Agreed Eric...I live a block behind a Kawasaki Dealer...I'm going to have to run over there and buy some...Even if not K&N (I think you might pay more for the name) but any bike filter oil...Although I remember my old man telling me when I was a kid that he used to run vegetable oil on his 2 stroke bikes when he used to race in Japan...but that's also back when they didn't tell you to oil the foam, it was OK to just run a foam ring around an open metal box...