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From Sunday drivers to the trucking industry, everyone would like a clean and cheap way to run their engine. The ability to power a car without chemical pollution or greenhouse gases would be a huge breakthrough.
But fuel cells and other electric technologies for vehicles are still a long way from mass production. In the meantime, biofuels are being tested as a more immediate solution to the problem. These alternative fuels can be made of everything from corn husks to french fry fat. A diesel engine will run off filtered vegetable oil. When you mix that oil with an alchohol you have biodiesel. Biodiesel can be used in a diesel engine neat — like whiskey — or mixed with regular diesel to keep it in liquid state at cold temperatures. In this documentary, Nadya Bell takes a look at drivers’ options under the hood — and at the pump.
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