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ORNL study quantifies fuel economy costs of common driver practices and vehicle alterations

Green Car Congress

Researchers at Oak Ridge National Laboratory (ORNL) have quantified the fuel economy effects of some common driver practices and vehicle accessories or alterations—including underinflated tires, open windows, and rooftop and hitch-mounted cargo. They presented their results in a paper at SAE 2014 World Congress in Detroit.

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New larger 2019 Volkswagen Jetta boosts fuel economy over curren generation

Green Car Congress

The all-new 2019 Volkswagen Jetta, unveiled in January at the North American International Auto Show (NAIAS) in Detroit ( earlier post ) will offer improved EPA-estimated fuel economy for the model: 30 mpg city (7.8 L/100km) and 40 mpg (5.88 L/100km) highway, for a combined 34 mpg (6.91

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Detroit Diesel Previews its 2010 BlueTec SCR Technology; 5% Improvement in Fuel Economy

Green Car Congress

Detroit Diesel, a Daimler company, previewed its production-intent version of Daimler’s BlueTec technology for emissions control at the Technology and Maintenance Council (TMC) Conference. More than 2,500 dealers, distributors, truckstops and retail outlets in North America are committed to carrying DEF, reducing concerns about availability.

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2014 Cascadia Evolution Class 8 rig delivers 10.67 mpg on closed-track demo; 7% better fuel economy than EPA 2010 Cascadia in cross-country tour

Green Car Congress

The Freightliner Trucks 2014 Cascadia Evolution—powered only by the newly designed Detroit DD15 engine and featuring enhanced aerodynamic specs—delivered fuel economy of 10.67 mpg US (22 L.100km) 100km) on a closed-track demo, according to Freightliner. Freightliner Cascadia Evolution. Click to enlarge.

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Hyundai introduces hybrid version of new Sonata; 10% improvement in fuel economy over predecessor

Green Car Congress

Hyundai introduced the Hybrid version of the seventh-generation Sonata at the North American International Auto Show in Detroit. Hyundai expects the 2016 Sonata Hybrid to improve fuel economy more than 10%. Sonata Hybrid will be built at Hyundai’s Asan, South Korea assembly plant and will go on sale early this summer.

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New Detroit DT12 transmission contributes to enhanced fuel efficiency and performance for heavy-duty trucks

Green Car Congress

Detroit Diesel Corporation, a Daimler company, is showcasing its DT12 automated manual transmission for heavy duty trucks. Part of the Detroit complete powertrain offering, the DT12 combines the operational ease of an automatic with the efficiency of a manual transmission, resulting in enhanced fuel economy, vehicle performance and safety.

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Coltura: Federal & state EV policy & incentives must target gasoline superusers to achieve carbon emissions goals

Green Car Congress

The report, “Gasoline Superusers,” presents the data available on drivers in the top 10% of gasoline consumption—the so-called “gasoline superusers.” Louisiana, Wyoming, and Mississippi are the states with the highest concentration of superusers, while Houston, Detroit, St.

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