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.


How to Get Better Fuel Economy

How to Get Better Fuel Economy

Saving gas and money while driving is surprisingly easy. Find out how to get better fuel economy and keep more money in your pocket. See more »

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 »