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Auto | Fuel Efficiency | 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.


How much corn would I need to fuel a cross-country trip with ethanol?

 How much corn would I need to fuel a cross-country trip with ethanol?

I've heard that it's possible to build a car engine to run off of ethanol, a byproduct of corn. How much corn would I need to grow in order to produce enough ethanol fuel to drive my car across the country? See more »

 What is top fuel and how is it different from gasoline?

When people refer to "nitro-burning funny cars" and "top-fuel dragsters," what are they talking about? What is "top fuel," and how is it different from gasoline? See more »

How Fuel Cells Work

 How Fuel Cells Work

Why are governments, private businesses and academic institutions collaborating to research, develop and produce fuel cells? Learn how fuel cells work and how efficient they really are. See more »

What's the difference between gasoline, kerosene, diesel, etc?

 What's the difference between gasoline, kerosene, diesel, etc?

What's the difference between gasoline, kerosene and diesel? Learn how crude oil's carbon chains determine whether it becomes gasoline, kerosene or diesel. See more »