As I said before, it's probably because km/L (or the godawful mpg, even) works better 
when you fill your tank every time you go to the gas station -- for it answers the 
question:  "How far can I go on this tank before I have to fill up again?"

For that purpose, L/100 km IS doing it backwards.

Carleton

In a message dated Mon, 01 Jul 2002 17:05:20 +0100, Markus Kuhn 
<[EMAIL PROTECTED]> writes:

>Brian J White <[EMAIL PROTECTED]> writes:
>> I think km per liter would
>> have been a much better choice than liters per 100km.
>
>There seems to be a tradition in the US marketing world, to use
>reciprocal units in order to ensure that a higher number means better. I
>would be curious if you have any reference for where/when this practice
>originated historically.
>
>Fuel consumption, that is volume or mass per distance would be the most
>natural quantity to describe efficiency of a car, but a lower figure
>means better, so its reciprocal value "mileage" was used instead in the
>US.
>
>Similar, for printer resolution, pixel size in micrometers would be the
>technically most natural specification of length, but smaller means
>better, so we ended up with reciprocal length (dots per inch) in the US
>marketing literature. German phototypesetters used to have a resolution
>of 10 �m, these days they are advertised to have 2540 dpi ... :-(
>
>In very recent products this trend is sometimes broken. Examples are the
>gate width quoted to characterize a semiconductor process (The Pentium4
>is produced in 0.13 �m technology) and mask pitch of color CRT monitors
>(mine here has 0.22 mm). It seems that in the computer industry people
>are more comfortable with the idea that smaller is better, even in
>advertised quantities.
>
>Markus
>
>--
>Markus G. Kuhn, Computer Laboratory, University of Cambridge, UK
>Email: mkuhn at acm.org, �WWW: <http://www.cl.cam.ac.uk/~mgk25/>
>
>

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