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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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Audi announces pricing and fuel economy for 2014 Audi A6, A7 and Q5 TDI diesels

Green Car Congress

Audi has now announced pricing and fuel economy figures for the 2014 A6, A7 and Q5 TDI models, expected to begin arriving at US dealers in late Summer 2013. The 2014 Audi A8 L was already recently introduced. 2014 Audi A6 TDI. 2014 Audi A7 TDI. 2014 Audi Q5 TDI. 2014 Audi A8 L. 2014 Audi A8 L.

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Ford tweaking calibrations to boost on-road fuel economy for MY2013 hybrids

Green Car Congress

Ford is boosting the on-road fuel economy performance of its 2013 model year hybrid vehicles in the US and Canada. Starting in August, the company will make calibration updates for owners at dealerships designed to improve on-road fuel economy of the 2013 Ford C-MAX Hybrid, 2013 Ford Fusion Hybrid and 2013 Lincoln MKZ Hybrid.

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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 mile closed-course track for 1,000 miles nonstop at an average speed of 60 mph, with a GCW of 76,000 lbs. mpg US (22 L.100km)

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Study finds 6.3% spread in fuel economy obtained with maximum and minimum rolling resistance tires

Green Car Congress

spread between the fuel economy obtained with maximum and minimum rolling resistance tires. At the average 2015 price of regular gasoline, the obtained fuel-consumption extremes result in a $78 difference in the annual cost of gasoline per light-duty vehicle, Sivak said. with a median of 10.28 mpg (RRf at 8.1 mpg (RRf of 12.1

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New Illinois law raises speed limit to 70 mph on rural highways

Green Car Congress

Illinois Governor Pat Quinn signed a new law to increase the speed limit from 65 to 70 mph (105 to 113 km/h) on rural four-lane highways, and to lower the limit by five mph for excessive speeding. D-Smithton), Senate Bill 2356 increases the maximum speed limit from 65 to 70 mph on four-lane divided highways outside of urban areas.

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Audi TDI models trounce EPA fuel economy ratings during “Truth in 48” cross-country efficiency drive

Green Car Congress

Three new Audi TDI clean diesel models far exceeded their EPA fuel economy ratings in completing the “Truth in 48” cross-country efficiency drive that covered more than 2,850 miles between Southern California and New York. gallons of clean diesel fuel driving from coast to coast. Earlier post.).