Window down?
Ok, so far I've got 56.2mpg over 300 miles going 55mph (give or take(hills)) with my driver-side window all the way down and my arm out the window. I'm sure this isn't the hot aero setup, so my question is, what kind of increase could I see with the window up all the way?
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1989 Dodge Diesel 972rwhp, 27mpg.
1971 Nova tubbed, solid cam 355 w/nitrous, 8mpg (sorry).
1960 Nash DIY Hybrid Project
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