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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. liter four-cylinder engine, also suffered as its fuel economy dipped 22% from 42.5

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ORNL researchers quantify the effect of increasing highway speed on fuel economy

Green Car Congress

This website, jointly maintained by the US Department of Energy and the US Environmental Protection Agency (EPA), provides information such as official EPA “window label” fuel economy estimates for city, highway, and combined driving for all U.S.-legal Analysis has focused on speeds of 50, 60, 70 and 80 mph. [ Data range.

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Bentley’s new 616hp 12-cylinder GT Speed convertible with 8-speed and energy recuperation improves fuel economy by 15%

Green Car Congress

liter W12 combined with a close-ratio eight-speed ZF transmission to deliver a 15% improvement in fuel economy. Provisional EPA fuel economy ratings for the convertible are 12 mpg city, 20 mpg highway, and 15 mpg combined. Provisional EU cycle fuel consumption figures are 22.7 Zero to 100 mph (160 km/h) takes 9.7

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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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Volvo Trucks North America introduces I-Torque; up to 31% increase in fuel-efficient speed range

Green Car Congress

Now available as an option with the latest D13 Turbo Compound engine, the Volvo I-Torque is a unique powertrain solution enabling the truck to operate optimally with up to a 31% increase in fuel efficient speed range, achieving up to 8.5 miles per gallon at 85 mph.

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Tesla Model S matches gas cars by going 320 miles at average speeds of 75 mph

Teslarati

The Tesla Model S reached a range on par with internal combustion engine (ICE) vehicles after logging 320 miles of range at 75mph during a highway fuel-economy test run. The Model S Long Range Plus has a 103.9 But when we recently got our hands on a Tesla Model S Long Range Plus, the scene was different.

MPH 145
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Consumer Reports finds Honda Accord hybrid fuel economy “impressive”, but short of EPA 47 mpg rating

Green Car Congress

Consumer Reports fuel economy tests found the Honda Accord Hybrid delivered impressive overall fuel-economy of 40 mpg (5.88 We’ve found that the EPA tests often exaggerate the fuel-economy of hybrids. —Jake Fisher, director of automotive testing at Consumer Reports. Earlier post.). liter gasoline V6.