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EIA: fuel economy improvements bring diminishing returns in fuel savings

Green Car Congress

Improving fuel economy exhibits diminishing returns in fuel savings, according to a brief analysis by the US Energy Information Administration (EIA). Similarly, the fuel and cost savings of improving fuel economy from 12 mpg to 15 mpg are the same as increasing from 30 mpg to 60 mpg.

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Gen 3 Ecodiesel in 2020 Ram 1500 EcoDiesel delivers 480 lb-ft, leading fuel economy

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The 2020 Ram 1500 will become the most powerful half-ton diesel pickup in the US, with 480 lb-ft (651 N·m) of torque, and the most capable light-duty diesel, with towing capability up to 12,560 pounds. liter V-6 EcoDiesel is also expected to lead the segment on fuel economy. The all-new third-generation 3.0-liter

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

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At the 2012 Los Angeles Motor Show in December, Audi of America announced the significant expansion of its diesel model line-up with the addition of A8, A7, A6, and Q5 TDI diesel models to the Q7 and A3 TDI already on sale in the US. The all-new Audi A3 sedan arriving in 2014, will also be available with a TDI clean diesel engine.

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New report finds global CO2 vehicle emission reduction measures falter; dropping diesels, increasing SUVs

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Vehicle fuel economy improvements have slowed globally, according to the latest report from the Global Fuel Economy Initiative (GFEI): Fuel Economy In Major Car Markets: Technology And Policy Drivers 2005-2017. Overall, global fuel economy has improved by an average of 1.7% L ge /100 km.

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DOE: all-electric vehicles have the lowest estimated average annual fuel cost of all light-duty vehicles

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The annual fuel costs for plug-in hybrid-electric vehicles, which can fuel with gasoline and electricity, are next lowest, and are heavily influenced by the electric range of the vehicle. All annual vehicle fuel costs are rounded to the nearest $50. diesel; and $0.13 Environmental Protection Agency, Fuel Economy Data.

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Beetle TDI diesel coupé priced from $23,295

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is pricing the Beetle TDI Clean Diesel coupé starting at $23,295. liter turbocharged, direct-injection Clean Diesel engine that produces 140 hp (104 kW) and 236 lb-ft (320 N·m) of torque. liter turbocharged, direct-injection Clean Diesel engine that produces 140 hp (104 kW) and 236 lb-ft (320 N·m) of torque.

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Cummins/Peterbilt SuperTruck shows 54% improvement in fuel economy, 61% improvement in freight efficiency

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The new SuperTruck achieved a 54% increase in fuel economy. and Peterbilt Motors Company, a division of PACCAR, released test results showing their demonstration SuperTruck tractor-trailer achieved a 54% increase in fuel economy, averaging nearly 10 mpg US (23.5 Click to enlarge. Cummins Inc.

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