45 Articles
Greenlings: Why do automatic transmissions now get better fuel efficiency than manuals?

Why do automatic transmissions now get better fuel efficiency than manuals?

Not so long ago, it was common for automatic transmissions to be referred to as slushboxes, since that's how they often behaved. Rather than use a mechanical clutch, traditional automatic transmissions use a fluid coupling between the engine and the gear-sets to transmit drive torque. This provides some benefits, but isn't a perfect system.

Greenlings: Who will be the main players in the electric vehicle space?

Who will be the main players in the electric vehicle space?

2012 Renault Fluence Z.E.

Greenlings: What realistic electric vehicle recharging options are there for apartment dwellers?

What realistic electric vehicle recharging options are there for apartment dwellers?

One of the challenges to making electric vehicles (EVs) "work" in the real world is figuring out how, where and when to recharge them. If you have a garage, then those questions kind of answer themsleves. You come home, take 15 seconds to plug the car into the wall

Greenlings: What's a light-duty truck, and why should we care?

What's a light-duty truck, and why should we care?

2009 Chrysler PT Cruiser – Click above for high-res image gallery

Motorsports
Greenlings: Can racing really be green?

Driving In Circles Can Sometimes Be Good For The Planet

Humans are competitive creatures who have raced against each other in one form or another for millennia. Is this still a good idea?

Greenlings: What's the point of concept cars?

What's the point of concept cars?

Honda P-NUT – click above for high-res image gallery

Greenlings: PHEV? DSG? VMT? A guide to common green vehicle acronyms

Guide to Common Green Acronymns

Deciphering the new vocabulary of the green car movement can sometimes be a real head scratcher. To alleviate as much confusion as possible, we would like to present our readers with a list of common acronyms and what they mean, with plenty of links for more information. If you have some TLA

What's the difference between kW and kWh?

What's the difference between kW and kWh?

Understanding electric and plug-in vehicles requires a slightly different knowledge set than what mechanics and drivers have needed to know for decades. One of the most obvious new concepts is the large battery pack and electric motor added to the car. The capacity values of these devices can

Why does mileage drop in winter?

Why does mileage drop in winter?

This week's Greenlings topic came to us from another reader tip. Don asked why his fuel economy suffers so much in winter weather. In his own experience, mileage drops about 10 percent when the temperatures go from the 60-70 F range

How does weight affect a vehicle's efficiency?

How does weight affect a vehicle's efficiency?

Over the last few decades, the average weight of a vehicle sold in the U.S. climbed steadily after we got over the oil embargoes of the 1970s. Today, though, auto companies are putting a lot of effort into reducing weight

Why can't Americans have good, small diesels?

Why can't Americans have good, small diesels?

What is CAFE?

It was big news when the Obama Administration updated CAFE requirements Sebastian Blanco

Will we ever replace the standard rear- and side-view mirror?

Recently, we received the following question from a reader:

Should I switch to straight veggie oil? What is holding SVO back?

We like to answer reader questions with our Greenlings series whenever possible, and thought that Timothy H. had a good topic. He sent in the following question/suggestion about straight vegetable oil (SVO):

How can we "refuel" electric vehicles today and tomorrow?

Renault Zero Emission line-up - Click for high-res image gallery

How important is the appearance of a green car?

2011 Chevy Volt - Click above for high-res image gallery

What are the promises and pitfalls of carbon fiber?

For the last century or so, cars and trucks have predominantly been formed from one material in particular: steel. It's not hard to see why – steel is relatively inexpensive, highly abundant and easy to form into somewhat complex shapes that can be repaired with mostly basic tools.

Can I convert an older vehicle to something more environmentally-friendly?

Converted plug-in Prius – Click above for high-res image gallery

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