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UMTRI study finds total cost of ownership of diesels in US often much less than gasoline counterparts

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Though there are some exceptions to these positive results for some of the diesel versions of vehicles from a total-cost-of-ownership perspective, the overall direction of the results supports the idea that diesel vehicles are competitive within the U.S. Average diesel take rates. Belzowski 2015. Click to enlarge. Model year.

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Volvo Car led CO2 reductions among European automakers in 2010 due partly to diesel success

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2010 Fleet-average weight and fleet-average CO 2 emissions by carmaker, compared with EU target line. Europe’s eight largest carmakers cut their CO 2 emissions by an average of 2% to 6% in 2010. in 2010, and today the average figure for new cars sold in Europe is 140 grams per kilometer. Source: T&E. Click to enlarge.

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California Gasoline Demand Up 1% in 3rd Quarter, Diesel Down 10.6%

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In the third quarter of 2009, gasoline consumption in California increased to 3.772 billion gallons of gasoline compared to 3.736 billion gallons the third quarter last year, according to figures released by the state Board of Equalization (BOE). Year-on-year quarterly gasoline consumption comparison. Source: BOE.

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NOAA, partners find about 98% decline in VOCs concentrations in LA Basin over last 50 years despite 3x increase in use of gasoline and diesel

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A scatter plot of CO, as a tracer for pollution, versus CO 2 , as a tracer for the amount of combustion, for 2002 and 2010. Even though the CO 2 enhancements over background were comparable in the two years, about 25 ppm in 2002 and 35 ppm in 2010, the ?CO/?CO2 CO2 ratio for this flight track segment decreased from 24.5

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Interim NREL Report on In-Use Azure Balance Gasoline Hybrids in FedEx Fleet Finds Substantially Lower Tailpipe Emissions, Similar Fuel Economy to Diesels

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Barnitt (2010) Click to enlarge. Fuel economy was similar between the gHEVs and diesel vehicles, except for the highest kinetic intensity drive cycle where the hybrid exhibited ~20% higher fuel economy. FedEx has deployed 20 gasoline hybrid electric vehicles (gHEVs) on parcel delivery routes in the Sacramento and Los Angeles areas.

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Swiss team concludes that particulate filters should be mandatory for GDI engines

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Based on a three-year study of toxic and environmentally relevant pollutants from gasoline direct injection (GDI) engines, Swiss researchers have concluded that some GDI engines emit just as many soot particles as unfiltered diesel cars did in the past. By contrast, diesel cars with particle filters exceeded the limit only 45-fold.

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University of Wisconsin Researchers Investigating Dual-Fuel (Gasoline and Diesel) Partially Premixed Combustion for High-Efficiency, Ultra-Low Emission Combustion; 53% Thermal Efficiency

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Researchers at the University of Wisconsin, led by Dr. Rolf Reitz, are investigating a blended dual-fuel (gasoline and diesel) concept to extend the operating range of partially premixed charge compression ignition combustion by using the varying fuel reactivity of the charge blend, which is determined in real time. Click to enlarge.

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