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.
Be Your Own Mechanic

What's the difference between a fuel cell vehicle and a hydrogen-on-demand vehicle?

A hydrogen-on-demand system can provide hydrogen for a fuel cell or for an internal combustion engine. But what about claims indicating you can fuel your car with water? Is there any truth to those statements?

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