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Final California deadline for upgrading heavy-duty diesels to MY2010 or newer engines

Green Car Congress

California’s Truck and Bus regulation ( earlier post ) has been in effect since December 2008, with the purpose of reducing emissions of diesel particulate matter (PM), oxides of nitrogen (NO x ) and other criteria pollutants from in-use diesel-fueled vehicles. Public agency and utility vehicles (not federal).

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

Green Car Congress

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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Actual fuel economy of cars and light trucks: 1966-2019

Green Car Congress

A modest increase between 2004 and 2008 (from 19.6 A minor increase between 2008 and 2019 (from 21.8 In comparison, the change between 2008 and 2019 (from 4.59 A modest increase between 1973 and 1991 (from 12.9 No change between 1991 and 2004 (19.6 mpg for both years). gallons per 100 miles to 5.10 per year.

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California Gasoline Use Down 2.3%, Diesel Down 3.2% in November 2009

Green Car Congress

California gasoline consumption decreased 2.3% and diesel consumption declined 3.2% in November 2009 compared to the same month in 2008, according to figures released by Betty T. January through November 2009, California gasoline consumption declined 1.4% compared to January through November of 2008. per gallon.

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CMU study concludes diesel and hybrid vehicles can retain more value than PFI gasoline vehicles despite higher new car price

Green Car Congress

turbocharged direct injection diesels or hybrids—retain more value than a paired conventional vehicle—i.e., port fuel injected (PFI) gasoline—during periods of higher fuel costs. For trucks, they also found that the diesel versions retained a greater value than the gasoline versions.

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California Gasoline Use Down 0.4%, Diesel Down 11.1% in October 2009

Green Car Congress

California demand for gasoline in October 2009 decreased 0.4% and diesel declined 11.1% compared to October 2008, according to figures released by Betty T. Through October 2009 California gasoline consumption had declined 1.3% compared to January through October of 2008. In October 2009, gasoline demand declined 0.4%

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Mazda announces SKYACTIV-X: gasoline Spark Controlled Compression Ignition

Green Car Congress

As part of the new technology to achieve this vision, the company disclosed plans to introduce a next-generation gasoline engine called SKYACTIV-X in 2019. This new proprietary combustion engine combines the advantages of gasoline and diesel engines to optimize environmental performance, power and acceleration performance.

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