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GM develops integrated exhaust manifold cylinder head for 3.6L V6 direct injection engine; improvement in performance, fuel economy, emissions and noise

Green Car Congress

The reduced complexity of the design of the new integrated exhaust manifold cylinder head ( bottom ) compared to the old ( top ). GM has combined the exhaust manifold with the cylinder head into a single aluminum casting in the 2012 Camaro 3.6L direction injection V6, achieving both better fuel economy while reducing emissions.

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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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New 3rd generation Audi TT diesel offers fuel economy of 56 mpg

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liters per 100 km (56 mpg US), which translates into CO 2 emissions of 110 g/km (177 g/mile). liters per 100 km (35 mpg US ) and CO2 emissions of 159 g per km (256 g/mile). Controllable flaps in the exhaust system modulate the sporty sound and make it even richer. seconds and reaches a top speed of 235 km/h (146 mph).

Audi 310
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2012 Hyundai Accent first to receive 1.6L GDI Gamma engine; 18% improvement in highway fuel economy to 40 mpg

Green Car Congress

MPG Contributions. fed by multipoint fuel injection (MPI)— and 123 lb-ft (167 N·m) of torque with a 30 mpg city and 40 mpg highway fuel economy rating. fed by multipoint fuel injection (MPI)— and 123 lb-ft (167 N·m) of torque with a 30 mpg city and 40 mpg highway fuel economy rating.

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New 2013 Nissan Sentra delivers 34 mpg combined fuel economy, up to 40 mpg highway

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liter engine and next-generation Xtronic CVT with sub-planetary gear, offers combined fuel economy of 34 mpg (6.9 liter engine, which along with the Xtronic CVT with sub-planetary gear helps deliver a 13% improvement in EPA combined fuel economy. With the FE+ models, Sentra achieves up to 40 mpg (5.88 2013 Nissan Sentra.

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2014 Ram 1500 EcoDiesel earns 28 mpg highway; best in segment

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liter V6 EcoDiesel-powered 2014 Ram 1500 pickup ( earlier post ) has earned a 28-mpg (8.4 The combined city/highway rating is 23 mpg (10.2 liter Pentastar V-6 gasoline engine earned 25 mpg (9.4 liter Pentastar V-6 gasoline engine earned 25 mpg (9.4 It also exceeds the EPA highway rating for the top-ranked small pickup.

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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 drop in fuel economy due to traveling 80 mph rather than 70 mph. Speed increase.