Thread: Why are tractor-trailer rig so much more fuel efficient
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Old 09-05-2008, 04:02 PM   #16 (permalink)
99metro
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Location: Briggsdale, Colorado
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putt-putt - '99 Metro Base
Team Metro
90 day: 58.76 mpg (US)

Dusty - '89 Bronco XLT
90 day: 13.89 mpg (US)

Cowboy - '90 Bronco XLT
90 day: 17.42 mpg (US)

HayHauler - '06 3500 ST
Team Cummins
90 day: 18.03 mpg (US)
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They are more aerodynamic.
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