Kids, do not try this at home. Researchers at Temple University have been experimenting with what happens when an electric current is run through fuel. Big boom, right? Well, apparently not.

According to a paper the Temple team has published in "Energy & Fuels", done right, a small electric current applied to fuel just before it enters the combustion chamber, makes for much smaller droplets of fuel which burn cleaner and more efficiently. The team installed and tested their device on a diesel Mercedes where it showed a 20% decrease in fuel consumption in the lab.

The VW Jetta TDI has proven to be quite popular in the short time it's been on sale here in the U.S.: it has put sales of the Tiguan in the cooler and the ones that are available are very hard to get. Now the fairest Jetta of them all has set a Guinness World Record by traversing the lower 48 U.S. states while returning 58.82 mpg thanks to John and Helen Taylor.

If you're already stretched paper thin under the financial weight of a thirsty, expensive vehicle, getting out of it for something more fuel efficient might seem like an unattainable dream. Fear not, the smarties over at Consumer Reports have rightly pointed out that since depreciation accounts for nearly half of the cost of a car during its first five years of ownership, buying a used miser is the best way to save money and resources.

As if "shift lights" weren't annoying enough... Nissan's new "ECO pedal" has been engineered to encourage good fuel economy with a servo-actuated gas pedal that will push back on the driver's lead foot when on-board computers detect wasteful acceleration. According to Nissan, vehicles equipped with the ECO pedal, and real-time fuel consumption gauges in the instrument panel, have returned a 5-10 percent increase in fuel efficiency. The Japanese automaker says it has plans to begin installing the ECO pedal in models next year, although there is no word on what models, or markets, will get the system. We're betting it's an option unlikely to show up on the GT-R anytime in the near future.

[Source: Reuters]

If anyone were to come along and do an updated version of Dire Straits' "Money for Nothing," the could change the background vocal from "I want my MTV" to "I want my MPG" or "I want my low Cd." Coefficient of drag, that is. Carmakers are taking every step they can, starting with aerodynamics, to give cars better gas mileage right now while they wait for more substantial technologies to come online in the near future.

But the tweaks don't stop with aero finessing. The 2009 Dodge Ram spent 200 hours in the wind tunnel, and it also received tweaks to its ECU, which means it spends more time in its cylinder cutoff mode. That, plus eighty pounds of weight savings, adds up to one more MPG on the EPA sheet. Said Ford's Derek Kuzak, "We need to treat every joule of energy in a vehicle like a precious commodity."

The car-buying public has put its collective foot down and demanded fuel-efficient vehicles, and automakers are likely to do anything to answer customer demand. That may include reinventing the wheel, as more automakers look into incorporating low rolling resistance tires into non-hybrid vehicles. The high-pressure rubber can return fuel economy improvements of 1-2 mpg in most instances, giving automakers that use them a leg up on the competition when comparing EPA data. The new four-cylinder 2009 Ford Escape eked out an additional 1 mpg with the new tires, giving the CUV 21 mpg in the city and 27 mpg on the highway. Michelin estimates that low rolling resistance tires can save $300 in fuel costs at $4 per gallon over the life of tire, which is fairly substantial.