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Photos: Revving up on fast food

The Big Green Bus from Dartmouth College runs on vegetable oil from deep fat fryers.
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1 of 8 Bill Detwiler/ZDNet

Big Green Bus

The Big Green Bus from Dartmouth College runs on vegetable oil from deep fat fryers.

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2 of 8 Bill Detwiler/ZDNet

engine

The engine of the Big Green Bus. To run on vegetable oil, the oil first has to be heated to 150 degrees Fahrenheit.

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3 of 8 Bill Detwiler/ZDNet

sponsors

Nascar has corporate sponsors, so why not a vegetable oil-burning bus? Lonely Planet is another sponsor.

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4 of 8 Bill Detwiler/ZDNet

control panel

The engine first runs on standard diesel until the vegetable oil comes to temperature. This is the control panel that shuts off the diesel and monitors other vital signs.

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5 of 8 Bill Detwiler/ZDNet

back of the bus

The back of the bus serves as a dorm. People also sleep outside.

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6 of 8 Bill Detwiler/ZDNet

reading

The requisite college reading material. The bus has a flat-screen TV too.

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7 of 8 Bill Detwiler/ZDNet

visitors

Visitors tour the inside of the bus.

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8 of 8 Bill Detwiler/ZDNet

Paul Renpen

Paul Renpen of Sacramento has converted his Mercedes diesel to run on vegetable oil. "I don't pay anything for it," he said.

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