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EPA annual trends report finds new vehicle fuel economy at record 24.1 mpg; new powertrain technologies rapidly gaining share

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EPA released the latest edition of its annual report on trends in CO 2 emissions, fuel economy and powertrain technology for new personal vehicles in the US. Among the top-level findings was that Model year 2013 vehicles achieved an average of 24.1 Adjusted fuel economy distribution by model year. Fuel economy.

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General Motors set sales records in China in 2014

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General Motors and its joint ventures sold a record 3,539,970 vehicles in China in 2014, an average of one vehicle every 9 seconds and almost 9,700 vehicles each day. from the previous high of 3,160,377 vehicles sold in 2013. from 2013 to 717,007 units. from 2013 to a record 73,500 units. GM’s sales were up 12.0%

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UCS analysis finds Hyundai-Kia with best sales-weighted new vehicle environmental performance in US in 2013

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In its sixth sales-weighted analysis of emissions from 8 major automakers’ 2013 model year vehicles, the Union of Concerned Scientists’ (UCS) latest Automaker Rankings report found that Hyundai-Kia unseated Honda as the “Greenest Automaker.” Climate Change Coal Emissions Fuel Efficiency' Click to enlarge.

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GM China Tech Day 2013 showcased advanced manufacturing processes, technologies and designs

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General Motors hosted the 2013 GM China Tech Day at the GM China Advanced Technical Center (ATC) in Shanghai from 9-12 December. Parts made from magnesium help reduce vehicle weight, resulting in better fuel economy. At the ATC’s Lightweight Materials Lab, GM is exploring lightweight magnesium alloy technology.

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New GM/Tula DSF cylinder deactivation technology could boost fuel efficiency in engines by up to 15%

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Comparison of DSF fuel economy gains and costs with competing technologies, from Tula’s 2013 SAE paper. In 2012, GM Ventures made an equity investment in Tula; in 2013, Tula engineers presented a paper on their technology at the 2013 SAE World Congress. Wilcutts et al. Click to enlarge.

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GM investing nearly $1.3B in 5 US plants; supporting new V6, 10-speed transmission

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General Motors will invest nearly $1.3 billion in five manufacturing sites in Michigan, Ohio and Indiana to produce new fuel-efficient engines and transmissions, enhance vehicle quality and streamline logistics. will support production of a new V6 engine, a new 10-speed transmission and an existing 6-speed transmission.

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Magnesium alloy VSC Machine successfully begins trial operation at GM China Advanced Technical Center

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The absence of turbulent metal flow, aided by the high applied pressure, can suppress gas porosity, notes Ohio State University Professor Alan Luo in a 2013 review of magnesium casting technologies. —Luo (2013). —Luo (2013). 6(b) shows a 6.9-kg kg magnesium IP beam casting for Buick LaCrosse.

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