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Why are tractor-trailer rig so much more fuel efficient
80,000 pound tractor-trailers rigs get 5-7 miles per gallon. Compare the weigh-fuel mileage ratio and a 5,000 pound auto should get about 80 miles per gallon.
What are the reasons for this and shouldn't autos be able to be just as efficient?
Just thinking,
Danny Harris
Arkansas
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