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2011 edition of EPA Fuel Economy Trends report shows several advanced powertrain technologies making significant gains

Green Car Congress

Fuel economy improvements for the hybrid vehicles vary considerably from 5-10% for the larger, luxury hybrid vehicles to more than 40%. Fuel economy improvements for diesels range from 15% to 30% relative to gasoline counterparts. From MY 2004 to MY 2010, CO 2 emissions decreased by 67 g/mi (15%), and fuel economy increased by 3.3

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EPA: GHG emissions standards for cars and light trucks should be revised; joint process with NHTSA (updated with more reactions)

Green Car Congress

The US Environmental Protection Agency (EPA) Administrator Scott Pruitt announced the completion of the Midterm Evaluation (MTE) process for the greenhouse gas (GHG) emissions standards for cars and light trucks for model years 2022-2025, and his final determination that the current standards are not appropriate and should be revised.

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EPA to maintain light-duty vehicle GHG standards unchanged through 2025

Green Car Congress

In an expected ruling, US Environmental Protection Agency (EPA) Administrator Gina McCarthy finalized her decision to maintain the current greenhouse gas (GHG) emissions standards for model years 2022-2025 cars and light trucks. mpg-e (if all reductions were achieved exclusively through fuel economy improvements). Earlier post.)

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2014 Cascadia Evolution Class 8 rig delivers 10.67 mpg on closed-track demo; 7% better fuel economy than EPA 2010 Cascadia in cross-country tour

Green Car Congress

The Freightliner Trucks 2014 Cascadia Evolution—powered only by the newly designed Detroit DD15 engine and featuring enhanced aerodynamic specs—delivered fuel economy of 10.67 The use of a closed test track allows us to demonstrate pure fuel economy potential with ambient weather conditions being the only uncontrollable factor.

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Global Automakers calls on EPA to withdraw proposed determination on MY 2022-2025 GHG standards, get back in alignment with NHTSA, provide more time

Green Car Congress

On 30 November, EPA proposed leaving the greenhouse gas (GHG) emissions standards for those model years in place, based on its technical analysis that shows automakers are well positioned to meet the targets, and proposed a 30-day comment period. l/100 km), if achieved exclusively through fuel economy improvements. Earlier post.).

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Study concludes that automakers tweak vehicle fuel economy to qualify for more favorable treatment; focus on car notches

Green Car Congress

In response to federal policies to boost gas mileage, manufacturers have changed vehicle weights, improved tire-rolling resistance and added aerodynamic features to push fuel-economy rates past government-mandated thresholds. Car notches are the small trigger points in the numerical values of fuel economy (say, the difference between 22.5

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California ARB rejects VW 2-liter diesel recall plan and issues Notice of Violation

Green Car Congress

ARB made public three separate official documents related to its actions: A transmittal letter signed by Executive Officer Richard W. US EPA issued a Notice of Violation to the company on the same day. diesel vehicles manufactured for model year (MY) 2009 through MY 2015 to circumvent CARB and EPA emission test procedures.