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Fuel Economy
The Auto Fuel Economy Channel explains the technologies behind your car’s fuel efficiency and engine power. Learn all about automotive fuel economy. See more »
what's inside: fuel & alternative fuel technologies
The Car Fuel and Alternative Fuel Technology Channel explores all aspects of traditional and new automotive fuel types. Learn about car fuels at HowStuffWorks
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Types of Fuel
Our fuel choices have an impact on our environment. In this section, learn about ethanol, the possibility of salt water as car fuel cars, clean diesel and natural gas vehicles. See more »
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Using & Processing Fuel
The Using & Processing Fuel section will help you learn how gas pumps, fuel gauges and how gas prices work, among other topics. See more »
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featured articles
Grassoline: Can we fuel cars with grass?
Can we use grass to power our cars? Proponents of cellulosic ethanol made from fast-growing switchgrass believe we can. Others are afraid we'll stop growing food to grow fuel.
videos: alternative fuels
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How a Hydrogen-Boosted Gasoline Engine Works
Faced with rising gasoline costs, automakers worldwide are working overtime to improve fuel economy while meeting strict emissions requirements. One promising way is to add hydrogen to the fuel/air mixture in a conventional gasoline engine.
Can a car run on nuclear power?
With skyrocketing gas prices, the search for alternative fuel is on. Could a pocket-sized version of a nuclear power plant make your car run 5,000 miles between fill-ups?
