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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Running on Empty? How Bad Is It for Your Car?

We've all done it – looked down and suddenly realized we're almost out of gas. What kind of wear-and-tear does this put on your car?

Love It or Hate It: Stop-start Technology Is Here to Stay

Does stop-start technology really help with fuel economy?

California Proposing Ban on Gas and Diesel Cars

California can — and probably will — change the kinds of cars on the road in the United States. But it's going to take a while.

Tesla's New Model 3 Aims Squarely at the Electric Car Mainstream

What sets the new electric car apart from its competition, and what features have people so excited?

For a Carpool to Work, Don't Ride With Jerks, Says Study

Scientists created an algorithm that matched people for social, as well as geographic compatibility, increasing rates of carpooling.

India Plans to Switch All New Cars to Electric by 2030

The world's second-most populous nation is preparing to make a change, and it could have big implications for business and the environment.

After Volkswagen: Where Does Diesel Go From Here?

Has the Volkswagen diesel scandal soiled clean diesel’s reputation beyond repair?

Do fuel additives really do anything?

The claims from the fuel additive bottles seem to scream at you from the shelf of your local auto parts store: add me to your tank and I'll make everything better! But do they really do that? Well, it depends on your car and on your needs.

Is gasoline more dense in the morning?

Everybody says it so it must be true, right? "Buy your gas in the morning when it's cooler, and it will last longer." Well, the science behind this theory is sound, but in reality, it won't save you much.

Are today's manual transmission cars more efficient than automatics?

Car enthusiasts swear that driving a car with a manual transmission is more fun than an automatic. Manuals have also historically boasted better fuel economy, but is that still true today?

Which has better fuel economy: manual or automatic?

Once upon a time, you bought a car with a manual transmission if you wanted to save at the dealership as well as at the pump. But times (and transmissions) have changed — manuals might not be the best at fuel economy anymore.

How Smart Morphable Surfaces Work

When is a car like a golf ball? Simple: when it has dimples! Now why, you might ask, would anyone want a dimpled car? As researchers on smart morphable surfaces are discovering, a dimpled surface can actually help an object travel faster and farther.

Where will fuel consumption and economy be in 15 years -- and beyond?

Fifteen years may seem like a long time, but if automakers are serious about meeting the new Corporate Average Fuel Economy (CAFE) standards, there's not much time to plan a strategy.

Does a diesel engine equal fuel cost savings?

A diesel-powered car may cost a little more initially, but you'll make up the difference in fuel savings, right? Find out if your diesel-powered savings plans actually add up.

Will all vehicles eventually be all electric?

In the early 1900s, vehicular propulsion was a free-for-all, with gasoline-, electric- and steam-powered cars all vying for popularity. Are we returning to the good ol' days of the automobile?

Will nitrogen-inflated tires save fuel?

If air is already 78 percent nitrogen, is there really any benefit to paying extra for nitrogen tire inflation? And how can nitrogen-inflated tires save fuel, anyway?

Safe Hypermiling Techniques

Some drivers are drawn to hypermiling because of environmental concerns, while others simply seem to share a passion for fiscal thriftiness. But are there really any safe hypermiling techniques?

Dangerous Hypermiling Techniques

In general, hypermiling is a dangerous practice. In fact, some of the most effective hypermiling strategies work only because the driver intentionally sacrifices control of the vehicle.

Increase Your Car's MPG with Eco-mods

Some of these eco-mods appear to be logical, while others seem a bit like wishful thinking. Can the right eco-mod for your car save you money at the pump?

What are the best sources for unbiased fuel economy data?

As they say, "Your mileage may vary." But if you're new-car shopping, you probably want a reliable fuel economy number. Where do you go? Who can you trust?

How to Calculate Your Car's Fuel Consumption

There are two ways to measure your car's fuel economy: miles per gallon (mpg) and gallons per 100 miles (g/100m). Do you know how to calculate both of these figures?

Everyday Driving Tips to Save Fuel

You're not here looking for ways to not drive your car. Nope, you want advice that will keep you trucking on the cheap, so let's get to it. Here's a freebie: Tying four mattresses onto the top of your car is not super fuel efficient.

Choose the Right Vehicle for Every Task

Driving the right vehicle is important when you have a busy life filled with work, school, family and hobbies. Here's a quick guide to help you choose the right vehicle for any occasion.

How Formula E Will Work

Watching a field of Formula E race cars circle a racetrack is going to require some adjustment on the part of the spectators. Why? Because they're quiet. Chirping-crickets quiet.


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