I hate to admit it...but I never heard of this before! What a great idea/product! It's a pity that its only for diesel engines...but at least it s a start!

Cool. Willie Nelson has been running his tour bus on vegetable oil for the past couple of years. When they need to fuel up, they go to fast food places and ask for their old oil.

Here's his site on biodiesel: http://www.wnbiodiesel.com/

Well...well...Willie does it again! At least those fast food places have a greater purpose now!

The University of Colorado has several busses running on bio-desiel (derived from veg. oil)