Top Definition
Refering to mpg (miles per gallon), this is an avergae of mpg in urban area, which is usually high due to the stopping, starting and speed differences , and that of rural area, which is much lower (about 10-40% lower)
Urban: 26mpg
Rural: 38,pg
Urban+rural: 32 mpg
by Kung-Fu Jesus May 05, 2004
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