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Auto | Fuel Efficiency | Fuel Economy

Fuel economy is about maximizing the number of miles your vehicle can travel on a gallon of fuel. The cost of fuel has a major impact on fuel economy. Check out these great fuel economy articles from HowStuffWorks.

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How to Read the New Fuel Economy and Environment Labels

Fuel economy labels have been around for about three decades. But now it's time for new labels, and the EPA calls it "the most dramatic overhaul in the history of EPA's labeling program."


How EPA Fuel-Economy Testing Works

 How EPA Fuel-Economy Testing Works

Why do the EPA's fuel economy numbers almost always seem to be off-base? Learn how the EPA tests new cars and trucks to gauge their fuel economy. See more »

How the Hydrogen Economy Works

How the Hydrogen Economy Works

With fossil fuels in limited supply, the ever-increasing consumption of this commodity causes problems ranging from global warming to dependence on outside oil sources. Hydrogen is a possible fix, and the technology to take advantage of it is already out there. Find out the benefits of and hurdles facing a hydrogen economy. See more »

What speed should I drive to get maximum fuel efficiency?

What speed should I drive to get maximum fuel efficiency?

I know that the faster I drive my car, the more gas it uses. But on the other hand, I'll get to my destination in less time. Is there a "sweet spot" on the speedometer that would give me maximum fuel efficiency? And if so, is it different for different car models? See more »