Since I am leaning toward a Dmax I want to know if anyone has used alternate fuels in them and how well it worked? I am thinking of stuff like:

  • Bio Diesel
    • Did you make it or buy it?
    • If you made it, how much work was it?

  • Used oil from fast food restaurants? have you tried it after filtering it?
  • Propane/Natural Gas kit for the diesel, ever tried it, how did it work, was it worth it?