🚀 go-pugleaf

I am tallying the results of a bike-to-work challenge that I posted to
the cycling groups on the Internet last month.  I have obtained
emissions figures from the California Air Resources Board that allow
me to estimate the quantity of pollutants (organic gases, carbon
monoxide and nitrous oxides) saved by a cycling commuter over the same
commuter in a single occupant automobile.

Someone suggested that in addition to reporting the quantity of
pollutants saved, I report some more tangible equivalents, for
example, the savings in fuel costs.  Here are a couple of specific
questions.  If you have any either ideas, please send them along.

Q1: What is the average fuel efficiency of the US automobile fleet?  I
am guessing that it is somewhere around 25 mpg at 55 mph but that's
just a guess.

Q2: Is it possible to say that 1 gallon of gasoline (say regular
unleaded) requires the refinement of X barrels of crude oil?  If so,
what is the factor X (approximately)?

Cheers,
patrick
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 Patrick Goebel           | voice: (415) 321-2052     ------  __o
 CASBS                    |   fax: (415) 321-1192  -------  _`\<,_
 202 Junipero Serra Blvd. |                           ---- (*)/ (*)
 Stanford, CA 94305       | High Speed Digital Commuter
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