ORNL researchers quantify the effect of increasing highway speed on fuel economy
Green Car Congress
JANUARY 18, 2013
legal light-duty vehicles from 1984 to present. The study includes various sizes of sedans, wagons, and SUVs, as well as pickup trucks, minivans and a few “muscle” and sports cars. Percent mpg decrease for a given 10 mph increase based on 74 vehicles. Analysis has focused on speeds of 50, 60, 70 and 80 mph. [ Data range.
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