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., The agreement has a seven-year initial term with three one-year renewal options. Since 2000, UPS’ “green fleet” has traveled more than 185 million miles. and Las Vegas, Nev.,
186 
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