I second that. Propane can give you 100 RWHP. It burns the diesel much more efficiently. You can gain 2-3 MPG's if you're not rompin on it constantly. See if you can get Quadzilla to chime in. He knows his shizznit when it comes to that.... well that and pretty much everything else. The Powershot 2000 system can be set to increase the propane as the boost increases.