UPS adds 48 more heavy-duty LNG tractor trucks to fleet; Westport HD System
Green Car Congress
FEBRUARY 22, 2011
Manufactured by Kenworth, the LNG tractors are powered by Westport HD Systems and initially will pull trailers on a transit lane linking Ontario, Calif., UPS is the only private delivery company using this technology in its fleet and now has more than 1,100 natural gas-powered vehicles in service. and Las Vegas, Nev.,
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