Fuel Efficiency

Fuel efficiency has become an extremely important topic in today's world because of rising gas prices, the need to cut our carbon footprints, and the need to cut dependence on oil-rich nations. Check out these great articles on fuel efficiency.

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You've probably noticed more and more hybrids on the road in recent years. Most major car makers now offer hybrid models -- but which ones do consumers prefer?

By Jamie Page Deaton

Many eco-friendly drivers wonder if a hybrid is too expensive to buy. Yes, they cost more than conventional cars, but they can be affordable with a few incentives.

By Kristen Hall-Geisler

If your goal is to save money at the fuel pump and to do your part in reducing tailpipe emissions, a hybrid car is an excellent choice. However, are you sacrificing speed for fuel efficiency?

By John Fuller

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Most people associate hybrid engines with green driving, but how can drivers add more power to their vehicles? It's easier than it sounds, but trade-offs abound.

By Christopher Neiger

Some automakers are beginning to offer solar panels on their hybrid cars. One manufacturer even includes a solar panel on a non-hybrid car. So, how much added power can a solar panel really provide?

By John Fuller

Some car owners use an electric car conversion kit to make their vehicle all-electric. Others use the kits to add driving range to an already efficient hybrid car. But do these kits really work?

By John Fuller

The idea of a fully electric car may seem like a new thought -- but it's definitely not. In fact, the first practical electric cars were around long before gasoline-powered cars. So, what happened?

By John Fuller

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Hydrogen is the most abundant element on Earth. We've known how to harness its power since the early 1800s. So, why do some experts say hydrogen-powered cars are still decades away from mass production?

By Christopher Lampton

Most people know that the High Occupancy Vehicle (HOV) lane is for buses, carpool vans, motorcycles, emergency vehicles and cars and trucks with more than one occupant. But what if you drive a hybrid?

By John Fuller

There's a movement to get everyone onboard with the idea of alternative fuel vehicles. Hybrid cars are the popular choice right now. But if hybrid cars burn gasoline, aren't they still causing pollution?

By John Fuller

By now, it's probably safe to say that most people understand the fundamentals of hybrid car technology. But do you know how far back in history you have to go to discover the first hybrid car?

By Christopher Lampton

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The goal of the emissions certification standard is to help your car run smoothly and fight global warming at the same time? All you have to do is head to your mechanic for an emissions test.

By Patrick E. George

The United States Environmental Protection Agency can help you choose a car that's environmentally responsible. Do you know your vehicle's greenhouse gas score?

By John Fuller

You're in luck if you're in the market for a fuel-efficient car, truck or SUV -- there are quite a few options available. But what if you want a vehicle that's a certified environmental performer?

By John Fuller

If you buy a new hybrid car between Jan. 1, 2006 and Dec. 31, 2010, you may be eligible for a pretty significant tax credit. But how do you know if you're eligible? And how do you redeem it?

By John Fuller

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It seems as though a lot of people are seriously considering the purchase of an alternative fuel vehicle. But have you thought about how you're going to fill it up or charge it when you need to?

By Terry V. Boyce

How does a gas pump know when you've got a full tank? Read this simple explanation of the mechanics that cause a gas pump to shut off when the tank is full.

Most people never think about driving through a wall; however, drivers do it each and every day -- except the "wall" is actually a wall of air and your car's aerodynamics help you break through it.

By Patrick E. George

A grease car can save you a lot of money on fuel, but can it also cost you in fines from the government? Why would clean fuel get you into trouble?

By Julia Layton

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Grease cars use waste vegetable oil from fryers and restaurants as gas. But can your car become an efficient, aromatic vehicle, too?

By Julia Layton

You know that your car's interior tends to get hot -- dangerously hot -- in the summer. A solar vehicle ventilator would help drivers cool off by using the sun's energy to blow hot air out of your car and draw cooler air inside.

By Akweli Parker

Your fuel mapping computer picks up where your old carburetor leaves off, regulating the air and fuel mix in your engine so it can run smoothly. You don't need to do anything else but drive.

By Kristen Hall-Geisler

Corn crops have been exploding to meet the increased demand for ethanol. It may seem like a good thing, but the distinct possibility of permanent drought in several major corn-producing states has given farmers and scientists pause.

By Akweli Parker

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We've heard it repeated so often in the past several years -- we're running out of the fossil fuels that power our cars. So why aren't we using solar power to fuel our vehicles?

By Jamie Page Deaton

Since its formation in 1967, the California Air Resources Board (CARB) has created a number of mandates that have shaped the car industry in surprising ways. Do you live in a California emissions state?

By Patrick E. George