Fuel Efficiency

  • Shell Airflow Starship fuel economy record truck

    While the auto industry has placed an emphasis on alternative fuels, electric cars, and other propulsion methods, the trucking industry is poised for an efficiency revolution of its own. Nowhere could that be more clear than in the Shell Airflow Starship semi truck. The semi truck and its driver, Bob Sliwa, will attempt to set a fuel-economy world record for a loaded Class 8 truck. The journey will take the truck across the United States, beginning in San Diego and ending in Jacksonville, Florida. The truck will haul 50,000 pounds worth of cleaned reef materials along the way. The North...

  • 2013 Mazda CX-5 compact crossover on test drive, Southern California, Nov 2011
    Despite Previous Doubts, Mazda Bringing Diesels To The U.S.

    Mazda believes that offering a range of diesel products in the U.S. will boost sales and differentiate it from the competition.

  • Mazda i-ELOOP capacitor-based regenerative braking technology
    Mazda Spawns World's First Capacitor Brake-Regeneration Tech

    With the stunning Mazda Takeri concept car due at the 42nd Tokyo Motor Show beginning Wednesday, the company will pioneer a piece of technology that improves the fuel economy of its cars by 10 percent. Known as i-ELOOP, it uses a capacitor as part of its regenerative braking system, for the first...

  • 2012 Kia Rio Sedan
    2012 Kia Rio: Stop/Start For One Of America's Cheapest Cars

    Stop-start technology is an easy way of improving a car's fuel economy by a few MPG and lowering emissions - especially if you regularly commute in heavy traffic. However, its use is contentious for many carmakers as the U.S. EPA official fuel economy figures are completely unaffected, even if...

  • 2011 Chevrolet Equinox LTZ
    Shhhh! New Tech Lets 2011 Chevrolet Equinox Get Better MPG

    Improving fuel economy and reducing noise can occasionally be mutually compatible - the smooth aerodynamics of a 2011 Toyota Prius making it a refined highway cruiser, for example. However, GM is trialling a technology in the Chevrolet Equinox that makes quietness an outright necessity for...

  • 2010 Volkswagen Golf TDI
    Volkswagen Debuts Cylinder Shut-Off Tech In 4-Cyl Engines

    Cylinder deactivation has been with us for several years in big V8 engines. Both GM and Chrysler have used it and Audi now offers it on its S range. Rather firing on all cylinders during steady freeway driving, the units use cylinder deactivation to save fuel when the power demand is low, shutting...

  • 2013 Lexus GS 350 teaser image, brightened to show detail.

    It's been a busy 24 hours for teasers: the 2013 Lexus GS shows its new face (barely). [MotorAuthority] Lotus unveils the Final Edition 2011 Elise and Exige. [MotorAuthority] AllCarsElectric merges with GreenCarReports next week. [AllCarsElectric] Nissan answers Top Gear's shenanigans with a new charging station. [AllCarsElectric] 2012 Mazda3 gets 40 mpg and still has its zoom-zoom. [GreenCarReports] Audi's new 1.8 TFSI manages 41 mpg and 170 horsepower. [MotorAuthority] Rowan Atkinson (aka Mr. Bean) crashes his McLaren F1. [MotorAuthority] 2008 Chrysler Town & Country and Dodge Grand...

  • 2012 Audi A5 Coupe
    Audi Unveils New 1.8 TFSI: 170 HP, 41 MPG

    Audi isn't the first name in high-mpg luxury cars--it has yet to release a hybrid, though it has several on deck, including the A6 Hybrid, which we won't get here in the U.S. But Audi does have its diesel engines, and those manage pretty solid economy while maintaining a level of performance thanks...

  • 2011 Chrysler 300
    2012 Chrysler 300, Charger V-6 Models Get 31 MPG With 8-Speed: Marchionne

    Just yesterday we tempted you with our exclusive news of a supercharged Challenger and Charger from SRT, both sporting eight-speed transmissions. Today, Sergio Marchionne says the 2012 Charger and Chrysler 300 V-6 models, when equipped with the eight-speed, will achieve 31 mpg. That's not quite as...

  • 2011 Chevrolet Cruze
    2012 Chevrolet Cruze: High Tech Electrics Deliver Fuel Gains

    GM has recently confirmed that from 2013 the Chevrolet Cruze compact sedan will be sold with a turbodiesel engine option, allowing an auto-equipped diesel Cruze to hit low to mid 40s miles per gallon on average. Even the regular gasoline version is fairly efficient by the standards of many cars...

  • 2013 BMW 3-Series spy shots
    BMW 3-Series To Get 3-Cylinder Engines, But Not Soon: Report

    Three-cylinder engines might remind you of your friend's crummy Geo Metro, but in five years' time, they might be the new hallmark of luxurious eco-chic.

  • 2012 Land Rover Range Rover Evoque
    2012 Range Rover Evoque Gets 28 mpg, Starts At $43,995

    The smallest and newest Range Rover is also very affordable and fairly fuel efficient. Why? Because turbo.

  • GMPP E-ROD 1955 Chevy Bel Air

    Is the GM Performance Parts E-ROD engine line really that efficient? In comparison to a typical hot rod, perhaps. But in comparison to GM's own cars, not so much.

  • 2012 BMW 1-Series Hatchback
    2012 BMW 1-Series: Larger, More EfficientDynamics Technology

    You can make your own mind up about the styling of the upcoming 2012 BMW 1-Series hatchback, but one thing is for certain: with larger dimensions and more efficiency, the appeal of BMW's smallest model will be broader than ever. Most exciting for tech fans will be the EfficientDynamics and...

  • Gas Buddy
    Memorial Day: 6 Apps For Your 3-Day Weekend

    If you're one of our U.S. readers, you're probably (well, hopefully) preparing for a three-day weekend. And although gas prices are sky high, chances are good that many of you are planning road trips over the Memorial Day holiday. If you're in that number, we'd like to suggest a few apps that'll...

  • LED bulbs
    Plug-n-Play LED Lighting On The Way, Gets Brighter, Cheaper

    If you spend a lot of time driving you won't have failed to notice the distinctive shape of high intensity LED daytime running lights on some modern vehicles. As for LED tail-lights, those are even more common. Only a small selection of vehicles features entirely LED-based headlights though...

  • Wave Disk Generator engine
    Video: Revolutionary New Engine, 90 Percent Lower Emissions

    There may be life in the old dog yet - engines have never been the cleanest of machines, requiring fossil fuels for their power and releasing all manner of gases, elements and chemicals through the combustion process. Carmakers have come on in leaps and bounds over the last few decades to make the...

  • BMW logo
    Breaking: EPA Mandate Forces Carmakers To Use Only Round Letters For Better MPGs

    In possibly the worst-timed government announcement ever, Lisa P. Jackson, the administrator of the U.S. Environmental Protection Agency is currently holding a press conference in Washington, D.C. to announce a new mandate for carmakers: all non-round letters in any badge, nameplate, or other...

  • Part 4 of BMW's Wherever You Want To Go series

    Today's fourth installment marks the last in BMW's documentary series entitled "Wherever You Want To Go." Entitled, "How We'll Learn To Stop Worrying And Love The Future," the last video segment pushes an optimistic take on what's to come in the world of personal mobility, positing that it might just be possible to move to more responsible transportation while keeping the fun intact. Last time, BMW looked at the way we use telecommunications to work, socialize, and play, and how computers will play a role in the future of transportation. In part two, we heard people that lived through the...

  • 2012 Infiniti M Hybrid, at the 2010 Los Angeles Auto Show
    2012 Infiniti M Hybrid Secures 32 MPG EPA Highway Rating

    Luxury hybrids are storming the marketplace, and bringing with them a new era of hybrid chic. The 2012 Infiniti M Hybrid hopes to snatch some of that market, and today's official EPA rating of 27 mpg city and 32 mpg highway should bolster its chances. Those figures yield a combined average fuel...

  • 2012 BMW X1 X1 xDrive28i
    BMW USA Chief O'Donnell Confirms Multiple Four-Cylinders In U.S. By End Of 2011

    We already know the new BMW X1 will be coming with BMW's four-cylinder TwinPower turbo engine later this year, but today at the Washington Auto Show BMW USA boss Jim O'Donnell announced that more than one is in fact coming before year's end. Other BMW models expected to get the four-cylinder...

  • Ford Intelligent Vehicles preview
    Ford Previews Vehicle-To-Vehicle Tech At Washington Auto Show

    The Washington Auto Show isn't known as the place for hot new concepts or production models, but it does have its share of future vehicle tech, and the latest from Ford previews its plans for vehicle-to-vehicle (V2V) tech aimed at improving traffic, safety, and efficiency. The first prototypes...

  • Volkswagen XL1 Concept
    Volkswagen XL1: High-Tech, Super Efficient, 261 mpg

    If the 20th Century was all about improvements in safety and performance for the motor car, the 21st Century see these criteria joined by efficiency. We're seeing a phoenix-like rise by the electric car, and manufacturers are finally taking steps to reduce vehicle weight, improve aerodynamics and...

  • 2012 Ford C-Max (European version)
    Ford Adding Start-Stop To U.S. Fleet In 2012

    Europe is already knee-deep in start-stop technology, but we Yanks haven't been invited to that party yet. Why? Because of differences in the way the U.S. tests fuel economy, for the most part. Without a real numbers difference to sell the feature, it's hard to justify the added cost. Ford...

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