You might be surprised by some of the alternative fuel solutions mentioned here; but which of these ideas are pure crank science, and which have a real chance of changing the world? See more »

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 »

Electric vehicles have been around, off and on, for more than 100 years -- and this time around, they're failing to meet sales projections. Is it still too soon to write them off for good? See more »

The search for alternative fuel is on. Could a pocket-sized version of a nuclear power plant make your car run 5,000 miles (8,047 kilometers) between fill-ups? See more »

Specially engineered Flexible Fuel Vehicles (FFVs) can tolerate an E85 mixture of gasoline and ethanol. But will ordinary cars and trucks be able to stand up to the new blend? See more »

The U.S. Navy says it could make about 100,000 gallons (378,541 liters) of JP-5 jet fuel each day using ocean water. But how long will it be before the Navy's plan is plausible? See more »

The biodiesel quiz will test your knowledge about biodiesel components, biofuel history and biodiesel pros and cons. Take the quiz and see how much you know about how biodiesel works. See more »

What do vegetable oil, corn and salt water have in common? They're all potential fuel sources for our cars. See how much you know about the next generation of biofuels in our Biofuel Quiz. See more »

Fuel cells are still pricier than even premium-grade gas -- do you know why? Test your fuel cell know-how in this quiz and learn some cool fuel cell facts along the way. See more »

Hydrogen-powered vehicles may be the wave of the future, but do you know why? Test your knowledge of this extremely light, clean-burning fuel source with the hydrogen-powered vehicle quiz. See more »