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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 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.

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SAE Publishes Revised J1711 Standard to Measure Exhaust Emissions and Fuel Economy of Hybrids and Plug-in Hybrids

Green Car Congress

Also, the list of standard test procedures addressed in SAE J1711 has been expanded to cover all five major test cycle procedures (UDDS, HFEDS, US06, SC03, and Cold FTP) now being used to evaluate vehicle fuel economy. There are two basic exhaust emissions and fuel economy tests described in J1711. Earlier post.)

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Chevrolet Cruze Eco achieves EPA-rated 42 mpg on highway

Green Car Congress

The non-hybrid 2011 Chevrolet Cruze Eco delivers an EPA-estimated 42 mpg on the highway (manual transmission models), with city fuel economy of 28 mpg. Our engineers were comprehensive and thorough when it came to evaluating and modifying the aspects of the car’s performance that contribute to fuel economy. Aerodynamics.

MPG 247
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Transonic Looking at Final Funding Round This Year, Production Deployment of Supercritical Fuel System in 2014; 50-75% Improvement in Engine Fuel Economy

Green Car Congress

TSCi combustion minimizes heat loss to the cylinder walls and in the exhaust. The TSCi injection system can also be supplemented by advanced thermal management, exhaust gas recovery, electronic valves, and advanced combustion chamber geometries. L/100km) EPA city and 48 mpg (4.9 Source: Transonic. Click to enlarge.

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455 hp 2014 Corvette Stingray to deliver EPA-estimated 29 mpg highway

Green Car Congress

The 2014 Corvette Stingray will deliver up to an EPA-estimated 17 mpg US (13.8 The estimate reflects an average of fuel economy in both the default “Tour” mode, which delivers 28 mpg highway, and driver-selectable “Eco” mode, which delivers 30 mpg highway. The LT1 delivers 460 hp (343 kW) with the available dual-mode exhaust.

MPG 239
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New 3.7L and 5.0L V8 Engines in Ford 2011 F-150 Full-Size Pickup Deliver Class-Leading Fuel Economy

Green Car Congress

liter V6 engine in the Ford 2011 F-150 full-size pickup (earlier post) is projected to deliver best-in-class 16 mpg city and 23 mpg highway in 4x2 configuration, pending EPA certification. liter V8 is projected to deliver 15 mpg city and 21 mpg highway in 4x2 configuration, pending EPA certification. The all-new 3.7-liter liter V6, 5.0-liter

F-150 225