Forum Discussion
skipnchar
May 23, 2013Explorer
The main REASON you get better mileage at slower speeds is because of the wind resistance. For that reason your optimal speed/mileage combination will change depending on wind direction. It will PROBABLY be slower than you want to drive on the highway when winds are on the nose. Best you can hope for is to just go slow enough that you get as much fuel economy as you can STAND to get for the driving you're doing. MOST of the time your actual optimal speed will be around 20 MPH.
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