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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. [ 50 to 60 mph.

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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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Consumer Reports testing finds many small turbo engines underperforming; fuel economy, acceleration no better than in larger conventional powertrains

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Consumer Reports’ own fuel economy tests of vehicles equipped with small turbocharged engines has found in many cases that the turbocharged cars tested by CR have slower acceleration and no better fuel economy than the models with larger conventional engines, the organization said. l/100 km) figures—i.e.,

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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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EPA fuel economy report finds weight and power leveling off, footprint stable

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EPA recently released the latest edition of its annual report Light-Duty Automotive Technology, Carbon Dioxide Emissions and Fuel Economy Trends. The report is the authoritative reference for real-world fuel economy, technology trends and tailpipe carbon dioxide emissions, for new personal vehicles sold in the US every year since 1975.

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DOE: new vehicle fuel economy improved 33% from 1980-2016

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According to data gathered by the US Department of Energy (DOE) from the US Environmental Protection Agency (EPA), new vehicle fuel economy in the US has improved 33% from 1980-2016, despite a 120% increase in horsepower and 47% improvement in acceleration (measured by time to accelerate from 0 to 60 mph).

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Ford C-MAX Hybrid EPA-rated at 47 mpg city, 47 mpg highway; plug-in Energi version offers 85 mph top electric speed

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100km), bettering the fuel economy of the Toyota Prius v by 3 mpg on the city cycle and 7 mpg on the highway (5 mpg combined). We’ve done this with innovation—represented by nearly 500 hybrid patents—while driving costs down 30 percent so we can bring these fuel-saving vehicles to more customers.

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