In this months National Geographic article there was an article about the energy sources of the future. In the article, there was a page, that was a picture of a guy and his astroturf covered car, carrying a thing of oil and the caption said that he gets his oil free from the used oil of a potato chip making company, and spends only $8 a month on fueling his car. I have a few questions. How and where can you get a potato chip or any other fryed food manufacturer to give you free oil? What is the $8 a month spent on? Isnt it gasoline, and not oil, that fuels you car, or can your car run on oil as well?