Thread: 5,000 pound diesel, 26mpg at 65mph
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Old 02-15-2011, 02:39 PM   #8 (permalink)
UFO
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Quote:
Originally Posted by comptiger5000 View Post
Weight isn't the issue at steady highway speeds. Aero drag is.
Aerodynamic drag is significant, however rolling resistance is still 25% of the energy loss, and that is proportional to weight and speed.
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