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Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

Green Car Congress

They found that the level of emissions of regulated and unregulated pollutants in diesel exhaust depends on fuel, load, engine calibration, and exhaust aftertreatment technology. L/2002 calibration and 6.4 For the study, they used a GM 2002 1.7 The second engine was a Ford 2008 6.4 L/2004 calibration engines.

Pollution 231
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California ARB Expands Assistance Program for Truckers to Reduce Diesel Emissions

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The changes made to the statewide Voucher Incentive Program, also known as the VIP, will make funding available to a larger variety of trucks that will help owners comply early with the statewide truck and bus regulation passed in 2008. VIP is part of the state’s overall plan to cut toxic diesel emissions 85 percent by 2020.

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EPA updates rules to ease commercialization of alternative fuel conversion systems

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Exhaust, Evap, and OBD testing. MY 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 and < useful life mileage. Exhaust and Evap testing + OBD scan tool test and attestation. MY >= current calendar year - 1. MY 2010, 2011, 2012 and < useful life mileage. Certification application. Intermediate age.

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DENSO develops new 2500-bar diesel common rail system; reductions in fuel consumption and emissions

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These changes allowed the fuel to atomize into finer droplets, which improved fuel ignition and combustion efficiency, resulting in increased fuel economy and cleaner exhaust emissions. In 2002, DENSO offered an 1800 bar common rail system, the world’s highest injection pressure at the time. Earlier post.).

Diesel 207
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EPA proposes approval of new ozone plans for the two of the worst Air Quality Zones in US: California’s San Joaquin Valley and South Coast

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In 2008, the 8-hour standard was lowered to 0.075 ppm. ppm by 2024, NO x will have to be reduced by 75% and VOCs by 25% from 2002 levels. ppm by 2024, NO x will have to be reduced by 90% and VOCs by 52% from 2002 levels. Earlier post.). For the SJV to attain 0.08 For the SC to attain 0.08

Ozone 236
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EPA Proposes to Streamline Approval Process for Fuel Conversion Systems

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Exhaust, Evap, and OBD testing 2. MY 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 and < useful life mileage. Exhaust and Evap testing + OBD attestation. current calendar year - 1. MY 2009, 2010, 2011 and < useful life mileage. Certification application. Intermediate age. Data submission 3. Outside useful life.

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NHTSA Modeling and Technology Projections Underlying the Proposed CAFE Target of 34.1 mpg by MY 2016

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In the past, the baseline was the manufacturers’ confidential plans for each model year; in the new analysis, the baseline is each manufacturer’s MY 2008 fleet. Cylinder deactivation: deactivates the intake and exhaust valves and prevents fuel injection into some cylinders during light-load operation.

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