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Hagens Berman files class-action fuel economy and emissions lawsuit against Fiat Chrysler and Cummins over SCR defect in RAM 2500 and 3500 diesels

Green Car Congress

The defect leads to lower fuel economy, non EPA-compliant emissions levels, and costly and frequent vehicle repairs, the complaint charges. When the SCR system breaks down, the filter gets clogged, requiring more fuel to be injected to burn it off, according to the complaint.

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Toyota introduces new XSE Hybrid Grade Camry

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for XSE grade, which uses a dual-outlet exhaust). Most AWD grades have 202 hp, while the Camry XSE AWD grade has 205 hp with dual exhaust. The Camry’s four-cylinder engine uses a very high compression ratio (13:1) and Toyota’s innovative D-4S fuel injection, which employs both direct injection and additional port injectors.

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Study finds high exhaust temperatures within NTE operation for heavy-duty diesels with aftertreatment systems contribute to high nanoparticle concentrations

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The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. Diesel particulate filters (DPF) and urea-based selective catalytic reduction (SCR) exhaust after-treatment systems thus have emerged as feasible strategies to meet the 2010 USEPA regulations.

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New Zealand Will Not Implement Fuel Economy Standard

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The government of New Zealand will not proceed with developing and implementing fuel economy standards as proposed by the previous government. Emissions standards are important for ensuring we are in step with the rest of the world in reducing harmful exhaust emissions. Earlier post.) Steven Joyce.

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Mazda announces SKYACTIV-X: gasoline Spark Controlled Compression Ignition

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Compression ignition combined with a supercharger will improve fuel economy while delivering tremendous engine response and increased torque of 10–30% over the current SKYACTIV-G gasoline engine. Earlier post.). Earlier post.). Earlier post.). Yamasaki, Y., Umahashi, S., Uesugi, Y.,

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Cummins Westport introducing new ISB6.7 G mid-range natural gas engine

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G will operate exclusively on natural gas (CNG or LNG) utilizing Cummins Westport’s proprietary spark-ignited, stoichiometric combustion with cooled exhaust gas recirculation (SEGR) technology, first introduced with the 8.9-liter g/bhp-hr PM and 2016 US greenhouse gas and fuel economy regulations. The ISB6.7 liter ISL G.

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Audi banking on Gen 2 3.0L TDI diesel for US sales; calls for a “fair shot” for diesel

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And yet clean diesel, one of the cleanest choices for putting the US on the road to energy independence, hasn’t see any sort of incentive since the Energy Independence and Security Act (EISA) of 2007. Do they receive HOV access for their improved fuel economy and ultra low emissions? Are these sales incentivized?

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