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Interim NREL Report on In-Use Azure Balance Gasoline Hybrids in FedEx Fleet Finds Substantially Lower Tailpipe Emissions, Similar Fuel Economy to Diesels

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FedEx has deployed 20 gasoline hybrid electric vehicles (gHEVs) on parcel delivery routes in the Sacramento and Los Angeles areas. NREL started a 12-month in-use technology evaluation comparing in-use fuel economy and maintenance costs of gHEVs and comparative diesel parcel delivery trucks in April 2009. Ah NimH battery pack.