ALTERNATIVE FUELS

Alternative fuels include biodiesel and hydrogen. Alternative fuels are important because they could eventually provide us with a cheaper, cleaner, and more abundant source of fuel. Check out these great alternative fuel articles from HowStuffWorks.
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How Natural-gas Vehicles Work

As gasoline prices soar and concern over harmful emission mounts, cars that run on alternate fuel sources are becoming increasingly popular. Natural-gas vehicles (or NGVs) are fuel-efficient, environmentally friendly and offer a relatively low cost of ownership.

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