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Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

Green Car Congress

High emitters occur as a result of breakage, mal-maintenance (performance modifications, rechipping, and/or after-treatment removal), and at end of a vehicle’s useful life. Livery fleets have changed significantly in the past decade, with many city fleets now featuring large numbers of hybrid and alternatively fueled vehicles.

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DOE to award up to $137M for SuperTruck II, Vehicle Technology Office programs

Green Car Congress

Volvo Technology of America LLC will develop and demonstrate a tractor trailer combination with lightweight cab that achieves the freight efficiency goal using alternative engine designs and a variety of system technologies. University of Washington, Seattle. valve faces, piston crowns, and exhaust ports) to improve fuel economy.

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