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[Blogs for the NC State Community] Fully Myelinated: The average fuel economy of the U.S. new passenger automobile fleet increased by less than 6.5 percent, while the average horsepower of new passenger cars increased by 80 percent, and their average curb weight increased by 12 percent. For light duty trucks, average horsepower has increased by 99 percent and average weight increased by 26 percent over this period.

[DieselNet.com RSS] Emission Standards: Japan: Fuel Economy: The higher average speed, quicker acceleration, and the cold start requirements of the JC08 test increase the stringency of the new fuel economy targets by about 9%. The fleet average passenger car fuel economy for 2004 vehicles is 15.0 km/L when measured over the 10-15 test, compared to 13.6 km/L over the JC08 test.

[Matthew Yglesias] Matthew Yglesias » Fuel Economy: 15162), Christopher Knittel analyzes the technological progress that has occurred since 1980 and the trade-offs that manufacturers and consumers face when choosing between fuel economy, weight, and engine power characteristics. His results suggest that if weight, horsepower, and torque were held at their 1980 levels, fuel economy for both passenger cars and light trucks could have increased by nearly 50 percent from 1980 to 2006.

[EcoModder.com] Demolition Man Concept Cars - Fuel Economy, Hypermiling ...: After many discussions between Silver Pictures, Warner Brothers and GM, the decision was made to utilize not only the Ultralite, but 17 additional GM concept vehicles, to add an authentic automotive component to the films futuristic look and feel. Silver Pictures and Warner Brothers quickly dispatched a production team to Detroit to see the vehicles first hand.

[Nation] Crossover boasts better fuel economy than RAV4 and CR-V ...: There's even a first-ever noise cancellation technology for Chevrolet in the four-cylinder model. It uses microphones inside the vehicle to detect booming sounds and then seeks to cancel them out with counteracting sound waves from the audio system speakers.

[Cartech Auto Parts] Throttle body spacer | Cartech Auto Parts: Greater fuel burn efficiency is possible through the use of a throttle body spacer. Many people enjoy the greater horsepower benefits as well as it provides much higher strength of the engine meaning that in vehicles that are meant for towing or hauling large amounts of weight, a little bit more can be added to the weight limits.

[AutoGuide.com News] Report: Hyundai to Equip 2011 Sonata With Automaker's First Direct ...: Friction reduction measures include a revision of the piston pin from a fixed-type to a full-floating design which cuts down on friction between the piston and cylinder wall. And under the piston crown, engineers have added a cooling jet which sprays oil over the piston walls reducing friction and contributing to an improvement in fuel economy.

[Car News on CarSession.com] Hyundai's first Gasoline Direct Injection engine: Developed with a budget of 170 billion won over a 46 month-long research period, the new 2.4 Theta II GDI engine will make its debut in the first half of 2010 starting with the recently launched Sonata, beating the mid-size sedan competition to market with this exciting new technology. GDI application will subsequently be expanded across the gasoline engine family and applied to other Hyundai models.

[Green Car Congress] Green Car Congress: Hyundai Unveils Its First Production Gasoline ...: Theta II, the second-generation of Theta, features numerous design enhancements over its predecessor starting with the application of a three-stage variable induction system (VIS) which improves engine breathing, automatically adjusting the volume of the air sucked into the combustion chamber to create the optimal air-to-fuel mix under different engine load conditions.

[Car Advice | News Blog] Holden Caprice US police deal threatened by Ford's new Taurus ...: Chevrolet last month unveiled the Caprice PPV (Police Pursuit Vehicle) and announced that it would aim to sell the long wheel-base Australian as a police-only vehicle from early 2011. ...

[The Car Connection - Blogs and News] Mazda's Tell All Weight-Loss Tips - The Car Connection: Some of the adjustments included the use of high and ultra-high tensile steels for lighter (and stronger) body and joint reinforcements, eliminating the underfloor catalyst, and changing the door-mounted speaker magnets to lighter neodymium types.By using these same principles, Mazda plans to reduce all its vehicle weights by at least 220 pounds beginning in 2011.The information comes from Robert Davis, Mazda’s senior vice president of product development and quality for its North American operations. Davis explained that reducing a vehicle's curb weight by 220 pounds will improve fuel economy by 3 to 5%.

[EcoModder.com] Shakeup at Aptera? - Fuel Economy, Hypermiling, EcoModding News ...: I wonder if an open source super efficient vehicle would be a better way to go? I've been advocating this sort of thing for a while now, and here's a little blurb from my blog: http://neilblanchard.vox.com/library...formation.html The idea .... It probably would use a turbo 660cc power plant from a Japanese Kei car, so if it weighed ~1400 pounds (the 2e will weigh ~1700), then it will still be very good mileage, if not nearly as quick accelerating as the electric version. ...

[Autoblog Green] Greenlings: How does weight affect a vehicle's efficiency ...: An extreme example of a way to driver around with less weight would be to only fill up the tank half way. Sure, you're trading time for efficiency, but if you live near a gas station and don't drive too often, this could be a reasonable thing to consider.

[atonement] atonement » Is Driving around with the Spare Transmission in my ...: Don’t get me wrong weight is a factor in fuel consumption but for everyday driving loaded or unloaded is negligible since is so small maybe 1/32 of a gallon per tank, if you drive it accordingly. Adjusting to starts is the most difficult because it takes a feel for what the engine wants in energy to get going, as for speed is simple keeping it at around 55mhp should be more than enough.

[BNET Blogs] Major Challenges Ahead in Addressing Auto Emissions | BNET Auto ...: It’s important to note, as DeCicco did, that light-duty vehicles are a much bigger part of CO2 emissions in the U.S. than they are globally. Our exceptionally high auto ownership means that what is 10 percent of total emissions globally is 45 percent in the U.S. measured separately.

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