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Consumer Reports survey shows high fuel costs cause downsizing, less driving; 73% would consider alt fuel vehicle

Green Car Congress

While gasoline costs were the number one reason cited for wanting a more fuel-efficient vehicle (at 90%), more than half of respondents also had other reasons, including a desire to be more environmentally friendly (62%) and concern about the nation’s dependence on foreign oil (56%).

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Volkswagen Emphasizes Downsizing at 30th Vienna Engine Symposium; Highlights 1.2 TSI and 1.6 TDI

Green Car Congress

Continuing to emphasize a downsizing approach, Volkswagen presented two new engines at the at the 30 th Vienna Engine Symposium (7-8 May): the 1.2-liter liter TSI gasoline engine and the 1.6-liter liter TDI engine will serve as a basis for all future four-cylinder diesel engines of Volkswagen. Click to enlarge. liter TDI diesel.

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Ricardo Launches Consortium to Evaluate Lubricant Challenges of Future Low Carbon Engine Technologies

Green Car Congress

The work of the consortium will be structured into a series of modules, the first of which will focus on the effect of downsized light duty gasoline and diesel engine technologies on lubricant soot levels and engine wear. Tags: Fuel Efficiency Lubricating Oils.

Engine 150
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Cummins ETHOS 2.8L optimized E-85 engine demonstrates 50-80% reduction in CO2 emissions in medium-duty truck

Green Car Congress

Cummins has developed an E-85-specific engine and powertrain that reduce carbon dioxide emissions by as much as 80% compared with a baseline gasoline-powered medium-duty truck. is designed specifically to use E-85 (85% ethanol and 15% gasoline). The Cummins ETHOS 2.8L liter displacement. Earlier post.)

Engine 319
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Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels

Green Car Congress

Knock and fuel octane rating are becoming increasingly important due to many powertrain design trends including downsizing, downspeeding, cylinder deactivation, and hybridization. … Alcohol and gasoline-alcohol blends also offer efficiency benefits independent of their octane value. —Leone et al. In their study, Leone et al.

Engine 150
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Pierburg GmbH electric compressor for turbos

Green Car Congress

The compressor is compatible with both gasoline and diesel engines. The electric compressor fits in well and without any constraints with the proven strategy of downsizing, the company said. This component allows pressure to be increased regardless of the exhaust-gas energy availability.

Exhaust 150
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New Federal-Mogul Powertrain high thermal conductivity seats and guides keep engine valves cooler; improved combustion, lower emissions

Green Car Congress

The extreme valve temperatures experienced on today’s highly boosted downsized engines can lead to reduced valve fatigue life and critical valve guide and stem seal temperatures, resulting in the need for expensive valve steel alloys. A combination of HTC and TIM technologies reduced peak inlet valve head temperatures by between 26 and 32°C.

Engine 150