Like HowStuffWorks on Facebook!

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.


Will cars ever run on carbon dioxide, or is that marketing hype?

 Will cars ever run on carbon dioxide, or is that marketing hype?

Will cars ever run on carbon dioxide? Keep reading to discover if cars will ever run on carbon dioxide or if it is just marketing hype. See more »

Will natural-gas cars ever be suitable for consumer use?

 Will natural-gas cars ever be suitable for consumer use?

Will natural-gas cars ever be suitable for consumer use? Keep reading to discover if natural gas vehicles will ever be suitable for consumer use. See more »

Fuel Options for the Future

 Fuel Options for the Future

Fuel options for the future. Read this article to learn the fuel options for the future, See more »

What are the safety concerns of fuel cells?

 What are the safety concerns of fuel cells?

What are the safety concerns of fuel cells? Check out HowStuffWorks.com to learn the safety concerns of fuel cells. See more »

What is a hydrogen fuel reformer?

 What is a hydrogen fuel reformer?

All fuel cells require hydrogen to work. Learn more about a hydrogen fuel reformer from this article. See more »

What is a solid oxide fuel cell?

 What is a solid oxide fuel cell?

Different kinds of fuel cells have different advantages. Learn about a solid oxide fuel cell in this article. See more »

Is the cost of fuel cells a major problem?

 Is the cost of fuel cells a major problem?

Is the cost of fuel cells a major problem? Visit HowStuffWorks.com to learn more about if the cost of fuel cells are becoming a major problem. See more »

Is nitrogen-enriched gasoline good for my car?

 Is nitrogen-enriched gasoline good for my car?

Nitrogen-enriched gasoline is marketed as a way to remove engine gunk. Read this article to learn whether nitrogen-enriched gasoline lives up to the hype. See more »

The Biofuel Quiz

 The Biofuel Quiz

The biofuel quiz will test your knowledge of biofuels and how they work. See how well you can shift mental gears and take the biofuel quiz. See more »

Quiz: Is hydrogen fuel dangerous?

 Quiz: Is hydrogen fuel dangerous?

Put on your protective gear and find out how much you know about hydrogen fuel's dangers (or lack thereof) in this dangerous hydrogen fuel quiz. See more »