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Nissan unveils 2013 Altima Sedan; 38 mpg highway

Green Car Congress

2013 Altima. The Altima ranked as the second best-selling car in the US in 2011; the redesigned 2013 Altima Sedan goes on sale at Nissan dealers nationwide in July at a starting MSRP of $21,500. The 2013 Altima equipped with the 4-cylinder, 2.5-liter The 2013 Altima equipped with the 4-cylinder, 2.5-liter

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Audi using supplementary port fuel injection to address particulates from gasoline direct injection

Green Car Congress

In part-load operation, the indirect injection supplements direct gasoline injection to improve fuel economy and to reduce the output of particulates from the engine. GDI technology provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. Earlier post.).

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FEV’s two-stage VCR system; 5-7% increase in fuel economy using variable length conrods

Green Car Congress

Use of a variable compression ratio (VCR) could be one technology approach to reducing fuel consumption in highly boosted (e.g., downsized, turbocharged) gasoline engine, as operating an engine with higher compression ratios at low load can increase fuel economy compared to operating an engine with fixed compression ratio.

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Bosch improves the mechanical vacuum pump

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In recent years, there has also been a growing need for vacuum in modern gasoline engines due to the spread of gasoline direct injection, which in combination with engine downsizing reduces fuel consumption by up to 15%. As of 2013, some 40% of all new cars in Europe had direct fuel injection.

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

Green Car Congress

A team of engineers from GM Powertrain, Ford and FCA have published a detailed review of how to estimate the engine efficiency benefits of higher octane fuel—e.g., fuel with higher ethanol content—for part- and full-load operation for different engine types and fuel assumptions. —Leone et al.

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Study finds technology cost of achieving European 2020 LDV CO2 targets more than offset by resultant fuel savings

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A report published by Cambridge Econometrics and Ricardo-AEA concludes that overall, the cost of technologies required to meet proposed European 2020 CO 2 regulations for vehicles (95 g/km for cars and 147 g/km for vans) will be more than offset by the resultant fuel savings. The project is taking a phased approach.

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Nissan adding new 2.0L turbo to Skyline lineup in Japan

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In November 2013, Nissan introduced the new Skyline with Nissan’s novel one-motor two-clutch hybrid system in every grade. has launched the New Skyline 200GT-t (the next-generation turbo model) featuring a high-power, fuel-efficient lightweight turbocharged gasoline engine with maximum power output of 155 kW? Earlier post.)

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