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Fuel-saving Devices

You may have seen ads for so-called fuel-saving devices that make outrageous claims about their effectiveness. But are there any that actually work? Get the facts about fuel-saving devices in these articles.

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5 Products for Better Fuel Economy

During times of rising gas prices, which seems to be all the time, vehicle owners are on the lookout for a well-priced product that can save them a few dollars in the long run.


Flexible Fuel Technology: Flex Engines

A flex engine sounds like some sort of futuristic motor, but you'd be surprised how long this technology's been around. Is it greener or more efficient than a gas-guzzling engine? Flex your brain muscle and find out. See more »

How Flex-Fuel Vehicles Work

Improving mileage is only one part of dealing with rising fuel costs. Some cars can accept gas blended with ethanol. But how does the vehicle adjust to the switch? See more »

5 Similarities Between PRT and Cars

Personal rapid transit systems offer a public transportation option that's a bit more comfortable than the average subway or bus. In what ways is a pod car like your own car? See more »

10 Surprisingly Fuel-efficient Sports Cars

There’s a saying about sports cars: They can pass anything on the road -- except a gas station. Here are 10 sports cars that break the stereotypical gas-guzzler image. See more »

How the EPA Tests Fuel-saving Devices

You've seen lots of fuel-saving devices advertised on late night TV. But how can you know the gas-saving product you ordered in a sleep-deprived stupor will actually live up to its promises? See more »

What is the technology behind the magnetic air car?

Running a car on compressed air isn't exactly a new idea. In fact, the technology dates back to the early 1930s. So what makes Magnetic Air Motors' magnetic air car unique? See more »

5 Impressive Qualities of the HyperCar

They said it couldn't be done: No one could build a car capable of traveling 100 miles or more on a single gallon of gasoline. They were wrong. See more »

How Low-energy Vehicles Work

We don't look at low-energy vehicles (LEVs) as outliers anymore. In fact, they've smoothly integrated themselves into the flow of traffic. Are LEVs now the new norm? See more »

Flexible Fuel Technology: Motorcycles

If you're a motorcyclist and you're interested in flexible fuel technology, well...you have limited options. Depending on where you live, you might even have to import your bike. See more »

5 Innovations for Lighter, Smarter Auto Parts

By 2025, it's quite possible that the average passenger automobile will be capable of getting more than 50 miles per gallon (21.3 kilometers per liter) — if it runs on conventional fuel at all. See more »