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Old 03-31-2012, 05:47 AM   #10 (permalink)
serialk11r
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Does the wind stay the same that long?
If it stays the same, no 50mph both ways would be worse for fuel economy, since the trip against the wind would require a lot of engine power, and the trip with a tailwind would be reducing engine load, which reduces efficiency. Going faster with tailwind and slower against the wind will decrease overall energy requirement from the engine, and increase average efficiency too.
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