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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

Green Car Congress

However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. Their open access paper is published in the journal Energy.

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EPA trends report sees record levels of average new vehicle fuel economy and CO2 emissions for MY 2012; role of new gasoline vehicle technologies

Green Car Congress

The final model year (MY) 2012 adjusted, real world CO 2 emissions rate is 376 g/mi—a 22 g/mi decrease (-5.5%) relative to MY 2011. MY 2012 adjusted fuel economy is 23.6 mpg higher (+5.4%) than MY 2011. mpg fuel economy improvement from MY 2011 to MY 2012 is the second largest annual improvement in the last 30 years.

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ACEEE ranks i-MiEV as “Greenest” car in US, Civic Natural Gas ties for second with LEAF

Green Car Congress

Mitsubishi’s i-MIEV battery electric vehicle took the top spot from the Honda Civic Natural Gas on the American Council for an Energy-Efficient Economy’s (ACEEE) 14 th annual environmental ranking. The natural gas Civic had held first place for 8 years running. ACEEE 2012 “Greenest” Rankings. Honda Civic Natural Gas.

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2012 Honda Civic HF: Quick Drive Of Higher-MPG Civic

Green Car Reports

Five months ago, we drove the 2012 Honda Civic Hybrid--which gave us slightly more than 45 mpg using "Econ" mode. That's the best gas mileage of any Honda Civic in recent memory. So we were eager to test the new-for-2012 Civic HF model, which forgoes the electric motor and lithium-ion battery pack of the Civic Hybrid.

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2012 Fisker Karma Owners Average 150 MPG, Company Says

Green Car Reports

The same day Consumer Reports released its devastating review of the 2012 Fisker Karma, the makers of the range-extended electric luxury sedan put out their own press release. Covering the $106,000 car's fuel economy, it reported on the real-world gas mileage achieved by a group of more than 30 Karma owners.

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Audi presents latest SQ5 TDI diesel; 48V MHEV & electric compressor

Green Car Congress

The SQ5 TDI was first introduced in the fall of 2012 as the first Audi S model powered by a diesel engine. This offers the advantage since exhaust gas cleaning responds more quickly. The exhaust manifold benefits from improved insulation; the exhaust gas reaches the optimum temperature more quickly after a cold start.

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EIA: light duty vehicle energy consumption to drop 25% by 2040; increased oil production, vehicle efficiency reduce US oil and liquid imports

Green Car Congress

quadrillion Btu in 2012 to 12.1 from 2012 to 2040, compared to 1.2% The rising fuel economy of LDVs more than offsets the modest growth in VMT, resulting in a 25% decline in LDV energy consumption decline between 2012 and 2040 in the AEO2014 Reference case. l/100 km) in 2012 to 37.2 l/100 km) in 2012 to 37.2

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