Quote:
Originally Posted by basjoos
Driving in the thinner atmosphere at high altitude gives you a big advantage in attaining high mpg's over those driving through the thicker air at sea level.
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It took me two years of hypermiling to realize this little gem of information. It's all about air density. Out here in the dry Colorado thin air I experience almost perfect driving conditions for high mpg's. The biggest factor being temperature.
The warmer it is, the thinner the air, and the better my mpg's.