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Old 06-12-2023, 12:04 PM   #20 (permalink)
aerohead
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Ford E350-based motor home, 15.97-mpg...................

Just for a comparison, I revisited member orbywan's 1995 Ford E350-based, Class-C motorhome aero-mod thread.
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With the 7.3-liter, turbo-diesel, A40D transmission, and aero mods, between Tucson and Phoenix, he was seeing between 13.1 and 17.26 mpg, with 10-20-mph, intermittent crosswind, for an average 15.97-mpg.
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With modern engines and the 10-speed transmission, a 2023 F-350 could be made to exceed orbywan's performance, depending on mods.
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