Yankton Press & Dakotan - Fill 'Er Up With Soybeans:
"I'm talking about a clean-burning alternative fuel called BioWillie that Willie Nelson is helping to market through a new company called Willie Nelson Biodiesel. What is it? It's essentially vegetable oil, mainly soybean oil, though the used frying oil from Dunkin Donuts or Sid's Greasy Spoon also works."
