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EPA: US GHG emissions in 2017 down 0.3% from 2016

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from 2016, according to the US Environmental Protection Agency’s (EPA’s) latest Greenhouse Gas Inventory. The decrease in total greenhouse gas emissions between 2016 and 2017 was driven in part by a decrease in CO 2 emissions from fossil fuel combustion. In 2017, total gross U.S. greenhouse gas emissions were 6,472.3

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EPA trends report sees record levels of average new vehicle fuel economy and CO2 emissions for MY 2012; role of new gasoline vehicle technologies

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EPA projects advanced transmissions (6+ speeds and CVTs), gasoline direct injection (GDI) systems, and turbocharged engines will be installed on at least 15% of all MY 2013 vehicles. The majority of the emissions and fuel savings from current vehicles, EPA noted, is due to new gasoline vehicle technologies. Click to enlarge.

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EPA fuel economy report finds weight and power leveling off, footprint stable

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EPA recently released the latest edition of its annual report Light-Duty Automotive Technology, Carbon Dioxide Emissions and Fuel Economy Trends. Model year (MY) 2016 vehicle fuel economy was 24.7 Average new vehicle horsepower (hp) was also basically unchanged in MY 2016, as the average vehicle was 1 hp higher than MY 2015.

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Chrysler Group files S-1 for IPO; snapshot of R&D priorities; exploring a light-duty hydraulic hybrid

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Chrysler is already relying heavily on its award-winning Pentastar V-6 gasoline engine, which features a light-weight aluminum block with variable valve timing that improves fuel efficiency over its pre-2010 predecessor engines. Our engine mix is intentionally moving toward smaller, 4-cylinder engines.

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EPA annual report on CO2, fuel economy and technology trends finds 2012 heading for all-time best; rapid adoption of new technologies

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The US Environmental Protection Agency (EPA) released its annual report summarizing key trends in carbon dioxide emissions, fuel economy, and CO 2 - and fuel economy-related technology for gasoline- and diesel-fueled personal vehicles sold in the United States, from model years (MY) 1975 through 2012. Source: EPA. Click to enlarge.

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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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The majority of the carbon and oil savings from current vehicles is due to new gasoline vehicle technologies, the report observed. The Trends report has been published annually since 1975 and covers all passenger cars, sport utility vehicles, minivans, and all but the largest pickup trucks and vans. Light truck market share.

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Achates Power building 2.7L opposed-piston light-duty engine; exceeding CAFE 2025, Tier 3 targets at lower cost

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Stemming from a major project partially funded with a $9-million grant from the Advanced Research Projects Agency - Energy (ARPA-E) to develop an opposed-piston two-stroke gasoline compression ignition engine (OPGCI) ( earlier post ), Achates Power announced it is developing a 2.7-liter, liter, 3-cylinder (i.e., The new Achates Power 2.7-liter

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