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Don't discount the possibility of headwinds
Posted by Louis (more from Louis) on Mon, 27 Dec 2004 12:55:51
In Reply to: 5 MPG loss on trip .Same Week! Figured out!, Texron, Mon, 27 Dec 2004 12:29:40
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A small increase in headwind can be a significant increase in drag,and since most of the power that your car requires at a steady state cruise is just to over come both aerodynamic and parasitic drag, it is possible. I drive the trip from the Boston area to NYC often, and have never got as good a mileage figure coming back( north) as I have going south. Typically 3 MPG difference. No other possible explanatin other than prevailing winds. Elevation difference for the trip is insignificant. Anyone else have a clue?
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