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Study finds gasoline exhaust contributes more to formation of secondary organic aerosols than diesel

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Contrary to expectations, exhaust from gasoline vehicles contributes more to the production of secondary organic aerosols (SOA) than exhaust from diesel vehicles, according to a new study by scientists from the Cooperative Institute for Research in Environmental Sciences (CIRES), NOAA’s Earth System Research Laboratory (ESRL) and other colleagues.

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Berkeley study identifies diesel as main source of vehicular secondary organic aerosols

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Contribution of gasoline and diesel exhaust to SOA over 0% to 50% diesel fuel use. SOA contributions from the two sources are equivalent at 6% diesel fuel use. These compounds in un-burned gasoline and diesel fuel dominate vehicular emissions of reactive gas-phase carbon that have the potential to form SOA.

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Transient Plasma Systems says advances are bringing plasma ignition technology closer to commercialization

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Advanced ignition technologies, such as those offered by TPS, have been widely recognized as enablers to achieving higher combustion efficiency and lower emissions for gasoline-powered engines. Kairos Ventures is the Los Angeles venture capital firm funding TPS. hp diesel engine.

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Mazda begins production of Mazda CX-5 with SKYACTIV-D diesel engine; Japan and Europe first markets

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liter diesel engine ( earlier post ) at its Ujina Plant near Mazda’s headquarters in Hiroshima. The debut of the CX-5 with a diesel engine marks a new push on clean diesels in Japan market for Mazda. 1 for a diesel engine for mass production vehicles. liter gasoline engine at the Los Angeles Auto Show.

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Mazda unveils new Mazda3; first production car to offer Skyactiv-X SPCCI engine with M Hybrid system

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The all-new Mazda3 will be on display at the Los Angeles Auto Show. Running on regular gasoline, SPCCI works by compressing the fuel-air mix at a much higher compression ratio, with a very lean mix. liter versions of the latest Skyactiv-G comprise the gasoline engine lineup for the new Mazda3. The Skyactiv-D 1.8

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Audi takes aggressive stance with diesel in the US; four new models and new 3.0L diesel engine; challenge to policymakers

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Audi of America is taking a more aggressive stance with diesel in the US, both in terms of product offerings and in policy. diesel engine, more details of which will emerge closer to launch. As of September 2012, a third of Q7 models sold, and more than 55% of A3 models sold, are diesel. Earlier post.) —Scott Keogh.

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The new MINI makes its debut; new architecture, new fuel-efficient engines, including 3-cylinder diesel

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The new MINI will make its auto show premiere in Los Angeles this week. The lowest fuel consumption and CO 2 levels comes in the MINI Cooper D with a 3-cylinder diesel: 3.5 – 3.6 Three model variants are available as of market launch: MINI Cooper with 100 kW/136 bhp 3-cylinder gasoline engine. Diesel Engines'

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