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Mercedes-Benz to use new steel pistons in V6 diesel of E 350 BlueTEC

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Mercedes-Benz will replace conventional aluminum pistons with a new generation of steel pistons in the V6 diesel engine of the E 350 BlueTEC in September. Mercedes-Benz has already announced the coming use of steel pistons in the OM 626 four-cylinder diesel produced by Renault and applied in the C-Class Estate. Earlier post.).

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Use of Supercritical Diesel Fuel for Improved Efficiency and Reduced Emissions

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An experimental P-T diagram mapping the liquid, liquid-vapor, and SC regions for diesel fuel-CO 2 mixtures with different compositions and densities (numbers in red and black, respectively). The fuel may coke for temperatures higher than 750 K (at the right of the red line). Energy & Fuels 2009. Anitescu et.

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Renault Launching New 2.3L Diesel

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liter dCi diesel. dCi diesel engine (type M9T) on New Master, its new large van. dCi diesel (ZD30) on rear-wheel drive vans. The new engine offers reduced fuel consumption (by 1 liter/100 km on average and by up to 2.7 It will meet two pollution standards: Euro4 (without a DPF) and Euro5 (with a DPF).

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Advanced Turbocharged, Direct Injected Gasoline Engines Poised to Take on Diesels in US and in Europe for Reduced Fuel Consumption and Emissions

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Additionally, suggested one of the speakers, advanced SIDI (spark-ignited, direct-injection) engines can take light-duty market share back from diesels in Europe based on the same trends. However, prior to the remarks on climate change and the regulatory response, he spent a few minutes discussing the efforts on urban pollution—e.g.,

Gasoline 150
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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

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CO 2 and NO x certification test data for heavy-duty diesel engines certified from 2002 through 2019. —“Technology Feasibility for Heavy-Duty Diesel Trucks in Achieving 90% Lower NO x Standards in 2027”. Source of data: US EPA (2019). Chart: MECA.

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Update on DOE Co-Optima project to co-optimize fuels & engines; goal of 30% per vehicle reduction in petroleum

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In October 2015, the US Department of Energy’s (DOE) launched a broad, joint effort to co-optimize the development of efficient engines and low greenhouse-gas fuels for on-road vehicles with the goal of reducing petroleum consumption by 30% by 2030 beyond what is already targeted. Earlier post.)

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Taking another look at methanol as an alternative transportation fuel for the US

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Cheng of the Sloan Automotive Laboratory assessing the prospects for methanol as an alternative transportation fuel in the US concludes that methanol is a safe and viable transportation fuel, although it not as good as ethanol in terms of energy density and ease of handling. It is a safe fuel.