For even more fun, run that beast on straight veggy oil!
http://biodiesel.infopop.cc/6/ubb.x?a=frm&s=447609751&f=159605551
Whereas biodiesel is 20% methanol or ethanol (usually petroleum derived), veggy is pure veggy!
Biodiesel is often $3 a gallon, veggy is free!
Biodiesel will eat your soft rubber in the fuel system, veggy is gentler, but does require significant modification. It is a fun project though.....