Quote:
smooth clay:
10056 g to 9553 g gasoline
or 503 g burned
26 mpg (US) their figures
dimpled clay:
9450 g to 8972 g gasoline
or 478 g burned
29.65 mpg (US) their figures
Gasoline weighs 6.073 lbs per US gallon (says wikipedia). 1 pound = 453.59237 grams, so 1 gallon = 2754.7 grams.
smooth: 5 mi / 503 grams = 5 mi / 0.182597 gal = 27.38 mpg (US)
dimpled: 5 mi / 478 grams = 5 mi / = 0.173522 gal = 28.81 mpg (US)
So their calcs seem fishy too. Unless I just screwed it up. (Plausible!)
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I pick up on this also but didn't want to write anything because I thought I might have heard them wrong.
