Slow Down to Save Fuel: Fuel Economy Decreases About 27% When Traveling at 80 mph Versus 60 mph

CleanTechnica
By U.S. Department of EnergyJun 2, 2022, 10:00 am164 pts
Fuel economy for a light-duty vehicle going 80 miles per hour (mph) is about 27% lower than when traveling at 60 mph. Between 40 and 50 mph is the optimum cruising speed for the best fuel economy in cars and light trucks, according to an Oak Ridge National Laboratory study of 74 different vehicles. The […]

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