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Mazda announces SKYACTIV-X: gasoline Spark Controlled Compression Ignition

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In 2014, Mazda said that it was planning a second generation of SkyActiv gasoline engines around 2020 that would achieve approximately 30% better fuel economy than production SKYACTIV engines using a form of homogenous charge compression ignition (HCCI) (see Yamasaki et al. the greatest contribution to reducing carbon dioxide emissions.

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KCL study finds London air pollution from traffic improving, but continues to exceed limits in many parts of city

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The study, published as an open-access paper in the journal Environmental Pollution , examined trends in air pollution over a ten-year period spanning 2005 to 2014, using data collected from 65 roads. Overall, there was a decrease in total traffic between 2005 and 2014, mainly explained by the reduction in cars and taxis.

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Ford introduces second-generation 6.7L Power Stroke V8 Diesel for F-Series Super Duty; Gen 1 hits 500,000 mark

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Ford introduced the 2015 F-Series Super Duty lineup at State Fair of Texas, featuring a second-generation 6.7-liter The advanced design places the exhaust inside the engine’s V-shape while the air intake is positioned on the outside of the V. Second-generation 6.7-liter liter Power Stroke V8 diesel. Click to enlarge. Earlier post.)

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