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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 Clean Diesel Fuel Works

The government is currently taking steps to make diesel vehicles much cleaner. New laws mandate the use of a cleaner-burning type of diesel fuel named ultra-low sulphur diesel or ULSD. Learn about this fuel. See more »

How E85 Ethanol Flex Fuel Works

Corn distilled into ethanol and mixed with gasoline is used to create E85. Each gallon of E85 consists of 85 percent ethanol and 15 percent gasoline. Learn the pros and cons of this new fuel. See more »

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. See more »

How Liquefied Petroleum Gas Works

You probably know it as the stuff that fuels a gas grill or a Zippo lighter, but that's just the beginning. People are modifying cars to run on the stuff. Learn all about liquefied petroleum gas. See more »

Alternative Fuel

When gas prices rise, people's thoughts naturally jump to alternative fuel sources. Check out these articles to learn all about the growing technology of alternative fuel. See more »

How Biodiesel Works

Soybean byproducts are nutritious and healthy. They can also power a car. Find out how soybean and other plant oils as well as animal fats are used to create the environmentally friendly fuel biodiesel. See more »

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 »

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

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?

Gasoline, kerosene, diesel, etc. all come from crude oil, but what makes them different? Read on to learn about their differences. See more »