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EPA issues a second notice of violation to Volkswagen alleging emissions cheating in MY 2014-2016 3.0L diesels

Green Car Congress

EPA issued a second notice of violation ( NOV ) of the Clean Air Act (CAA) to Volkswagen AG, Audi AG and Volkswagen Group of America, Inc., liter engines for model years (MY) 2014 through 2016 that results in increased NO x emissions of up to nine times EPA’s standard. EPA 2 November NOV. alleging emissions cheating.

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EPA and California ARB charge Volkswagen with using software defeat device to circumvent NOx testing in 4-cylinder 2.0L diesels

Green Car Congress

EPA has issued a notice of violation (NOV) of the Clean Air Act (CAA) to Volkswagen AG, Audi AG, and Volkswagen Group of America, Inc. liter, four-cylinder diesels include software (a “defeat device”) that circumvents EPA emissions standards for NO x. EPA call this software “the switch”. —EPA NOV.

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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. The mechanic also told him that upwards of 25% of the fuel is being diverted through the exhaust system to heat up the emissions, according to the filed complaint.

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US charges Audi manager with conspiracy to cheat US emissions tests; sacrificing NOx control for a sound system

Green Car Congress

As part of the SCR technology, exhaust stream emissions were dosed with a mist of a urea substance, commonly known as “AdBlue,” which converted NO x into nitrogen, water, and small amounts of carbon dioxide. The dosing strategy varied injection levels of AdBlue into the exhaust system depending on whether the vehicle was being tested.

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T&E: VW sells least polluting Euro 6 diesels in Europe; no brand meets Euro 6 in real-world driving; loopholes & defeat strategies

Green Car Congress

T&E charges that diesel cars are failing to operate their exhaust after-treatment systems for most of the time the car is driving, “almost certainly illegally misusing” a loophole in the rules governing the use of Defeat Devices. VW Group’s Dieselgate engines were mostly of the previous Euro 5 generation. Loopholes.

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ORNL researchers quantify the effect of increasing highway speed on fuel economy

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This website, jointly maintained by the US Department of Energy and the US Environmental Protection Agency (EPA), provides information such as official EPA “window label” fuel economy estimates for city, highway, and combined driving for all U.S.-legal legal light-duty vehicles from 1984 to present.

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ICCT study concludes no technical barriers to use of higher blends of ethanol

Green Car Congress

The consumption scenarios are technically achievable but do not reflect significant barriers such as cost, regulation, legality, and consumer acceptance. EPA has investigated the potential that cars running on E30 could be more efficient on an energy basis if their engines are designed for that fuel mix. Source: ICCT.

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