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EPA finalizes greenhouse gas standards for LDVs MY 2023-2026

Green Car Congress

The Environmental Protection Agency (EPA) is finalizing the federal greenhouse gas (GHG) emissions standards for passenger cars and light trucks for Model Years (MY) 2023 through 2026. EPA is planning to initiate a separate rulemaking to establish multi-pollutant emission standards under the Clean Air Act for MY 2027 and later.

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2012 Subaru Impreza with 30% fuel economy improvement uses BorgWarner variable cam timing technology

Green Car Congress

BorgWarner’s Cam Torque Actuated (CTA) variable cam timing (VCT) technology ( earlier post ) with new mid-position lock system ( earlier post ) helps improve fuel economy for the 2012 Subaru Impreza. According to Subaru, the 2012 Impreza offers 30% better fuel economy compared with the previous model year.

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EPA trends report sees record levels of average new vehicle fuel economy and CO2 emissions for MY 2012; role of new gasoline vehicle technologies

Green Car Congress

EPA projects advanced transmissions (6+ speeds and CVTs), gasoline direct injection (GDI) systems, and turbocharged engines will be installed on at least 15% of all MY 2013 vehicles. The majority of the emissions and fuel savings from current vehicles, EPA noted, is due to new gasoline vehicle technologies. Click to enlarge.

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EPA annual report on CO2, fuel economy and technology trends finds 2012 heading for all-time best; rapid adoption of new technologies

Green Car Congress

Adjusted CO 2 emissions and adjusted fuel economy, MY 1975-2011. Data for MY 2011 are final; data for MY 2012 are preliminary and based on projected vehicle production values provided to EPA by manufacturers. Preliminary projections for MY 2012 are 374 g/mi CO 2 emissions and 23.8 Source: EPA. Click to enlarge.

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Oak Ridge-GM prototype low-viscosity ionic liquid-additized engine oil delivers 2% fuel economy improvement over 5W-30

Green Car Congress

Prototype low-viscosity ionic liquid-additized engine oil demonstrated a 2% improved fuel economy compared to Mobil 1 5W-30 engine oil (3.93% over the 20W-30 baseline oil) in standard fuel efficiency engine dynamometer tests. Jun Qu, Dinesh G. Bansal, Bo Yu, Jane Y. Blau, Bruce G.

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Nissan boosts fuel economy of 2013 Pathfinder SUV by 30%, drops weight by 500 lbs

Green Car Congress

liter DOHC V6 engine mated to a next-generation Xtronic CVT (Continuously Variable Transmission) to help provide up to a 30% increase in combined city/highway fuel economy over the previous V6-equipped model while maintaining comparable power. By comparison, the 2WD MY 2012 Pathfinder, equipped with a 6-cylinder, 4.0L

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Obama Administration announces first fuel economy and GHG standards for medium- and heavy-duty vehicles

Green Car Congress

US President Barack Obama announced fuel efficiency and greenhouse gas emission standards for medium- and heavy-duty vehicles. Heavy-duty engines affected by the final standards are generally those that are installed in commercial medium- and heavy-duty trucks and buses.