Autoblog

Those who have had a hard look at their needs and still come to the conclusion that a full-size SUV would fit the bill officially have a new option. The Chrysler Aspen and Dodge Durango hybrids are now on sale and the EPA has determined that the pair have the best fuel economy of any such vehicles on the U.S. market. The Chrysler duo are officially rated at 20 mpg in the city and 22 mpg on the open road. Chrysler has opted to offer the Two-Mode hybrid trucks only with all-wheel-drive while GM's similarly powered Tahoe/Yukon can be had in rear- or all-wheel-drive. Comparing like configurations, both brands get an equal 20 mpg in stop and go traffic. Once you get up to cruising speed, the Chryslers pull out ahead, topping the GM SUVs by 2 mpg. At about $45K, the Chrysler/Dodges provide what may be an even more important advantage over the competition. An AWD Tahoe will run you $53,000. You don't really give up anything in terms of equipment or features for that price difference, so it's worth checking out. We sampled it ourselves this summer and came away with a fairly positive impression.

[Source: Chrysler]

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 technology is currently being tested on a fleet of diesel trucks in Pennsylvania. How soon might you see it on a car lot? Actually you may see it on a late-night informercial first.

The company will most likely bring the tech to market is the same one running the Pennsylvania test: Save The World Air, Inc. That's the same company that sells the MagChargR which is basically a magnet that supposedly does the same thing this new technology does. It's also the same company that at one time was selling the Zero Emission Fuel Saver (ZEFS) device which was basically a magnet that, um, did the same thing. The RAND Corporation looked into ZEFS and found "at best mixed results." STWA is also the company that was sued by the SEC for stock fraud.

So, maybe they've got something that works this time around, maybe not. The science sounds solid, but only time will tell if it translates into a working product.

[Source: Gizmag]

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.

The Taylors took 20 days to cover the 9,419 miles in a counter clockwise direction, and this wasn't a hypermiling slow-as-you-can-go affair – they stayed within 5 mph of the speed limit. Their car was completely stock as it consumed just 11 tanks of ultra low sulfur diesel and traveled 853 miles per fill up. With that kind of mileage and handling high up on the fun factor, the Jetta TDI makes an excellent case for itself if you like driving and want to lower your fuel consumption.

VW also recently told us that the go-fast Jetta TDIs in the TDI Cup Series are returning an average of 25 mpg and doing their entire 7-race series on just two tanks of gas, which includes qualifying. If that's true, there's got to be another world record in there somewhere...

[Source: AutoblogGreen]

The window sticker on a 2008 Navigator shows a mighty low 12 mpg in the city and only 18 on the highway, so Ford went back to the drawing board to improve on that number for this year. The Blue Oval's blinged-up luxury sled boasts a fuel friendlier average of 14/20 for 2009, a marginal improvement, but an improvement nonetheless. Ford says those numbers are good enough to put the Blue Oval at the head of the luxury SUV space that includes the Cadillac Escalade, Lexus LX570 and Nissan QX56. Ford was able to increase fuel economy by almost 15% on the big SUV by implementing some of the same engineering tricks employed on the 2009 F-150, which itself gets up to 15/21 in SFE trim. Changes were made to the idle speed and the transmission, as well as some fancy software engineering that regulates gas consumption by using aggressive deceleration fuel shut-off.

Ford also made standard several items that were previously only available as options, including a power lift gate, heated and cooled front seats, PowerFold third-row seats, cap-less fuel filler, Rear View Camera, flexible fuel-capable V-8 engine, SYNC and the stunning 14-speaker THX II-Certified audio system. The 2009 Navigator will also be available with Ford's new and improved navigation system with Travel Link. Ford hasn't announced any improvements for the Expedition, but we'd expect Ford's blue collar version of the Navigator will receive similar fuel economy enhancements. Hit the jump to view Ford's press release, which includes the full list of now standard features.

[Source: Ford]

With moms now actually reading EPA fuel economy figures on the window sticker before trying out the dozen cup holders found in most modern minivans, Chrysler went back to the engineering lab and knocked out a few more miles per gallon for its 2009 minivan offerings. Bragging that no other minivan offers better fuel economy than the 2009 Chrysler Town & Country and Dodge Grand Caravan, the automaker is boasting EPA figures of 17 city / 25 highway for the minivans when equipped with the automaker's 4.0L six-cylinder engine and minivan-first 6-speed automatic. Considering that the original 1984 Chrysler Town and Country achieved 18 city / 21 highway with a 2.6L four-cylinder and three-speed transmission, we've clearly come a long way. To squeeze out the extra miles per gallon, Chrysler tweaked the large 4.0L V6 engine and then changed the ratios on the transmission. With a higher ratio first gear, and smaller steps between the new ratios, the minivans are quicker off the line and the engine doesn't loose as much speed between shifts. The result is a fuel economy improvement of about 8 percent or about 2 mpg. Now, if the engineers could just do something about that minivan stigma...

[Source: Chrysler]

There's a lot of smack talk about Detroit automakers these days, and while some of it is spot on, other myths are no more credible than what's written in the men's john. General Motors is apparently tired of fielding questions surrounding this bathroom fodder and the embattled automaker is busting out its own Sharpie to dispel what it feels are untruths. GM has created a Web 1.0 site called GM Facts and Fiction on which are several statements often said in the media and around the water cooler that its feels are untrue. For example, much talk has come up concerning government bailouts, and GM Facts and Fiction counters that the federal money would not be a bailout but rather low-interest loans earmarked for developing fuel-efficient vehicles. Other topics of purported myth include fuel economy, product desirability and the Chevy Volt. Hit the link below to see GM's latest five fact-and-fiction posts, and let us know if you think the automaker is on the mark or just scribbling lavatory graffiti of its own.

[Source: GM Facts and Fiction]

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.

The usual suspects top CR's lists; both the under $10,000 and $10,000-$20,000 categories are dominated by Toyota and Honda products. Honda's Insight is deemed the zenith of $10,000 sippers, with the '01-'02 Prius right on its heels. For the higher-price category, the first two slots are occupied by the Prius, and Honda's Civic Hybrid takes the next two seedings. Rankings are based on CR's own fuel economy tests, done with a flow meter and repeatable drive cycle, and overall assessments of the vehicle's quality and reliability likely play big roles in how the list was compiled. It is also noted that older vehicles may be missing out in some more modern features like stability control and side-curtain airbags, but that may be more of an issue for the under $10,000 set, which stretches back to vehicles from the late 1990s. Hybrids might be tough to secure right now, especially for a reasonable price, but going used might allow you to ease your consumption while dodging a high-buck purchase to do so.

[Source: Consumer Reports]

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]

In an effort to expose the underreported truth behind the government's corporate average fuel economy ratings (CAFE) and to define more accurate fuel economy estimates, the team over at Cars.com has created their own True Mileage Index. The consumer website points out the flaw behind CAFE is that the adjusted calculations misrepresent the numbers posted on new car windows, and the actual fuel economy consumers will realize on the road (e.g., although Honda earned a 2007 CAFE rating of 33.5 mpg, no Honda has a combined mileage of better than 31 mpg). Like the CAFE calculation, the True Mileage Index analyzes a number of factors. However, Cars.com places more weight on actual sales volume, and less on alternative fuels (like E85). Their math places Honda's True Mileage Index at a more realistic 24.9 mpg. In a nutshell, don't get overly excited when you hear that the 2020 CAFE number is going to be 35 mpg -- it's likely to only increase your future vehicle's actual fuel economy by a few mpg.

[Source: Cars.com]

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."

In fact, that song hook could also be "I want my XFE." The Cobalt XFE, developed over 18 months to offer the best gas mileage in the Cobalt line, is selling six percent better than expected. Fuel economy, instead of design, is the number one reason people buy a Cobalt now. And the XFE has the lowest on-the-lot time of any Cobalt model. That's how important the price of gas has become.

[Source: Automotive News, sub req'd]