On Fri, 16 May 2008 15:20:56 -0700, Darren New wrote:

> Jim Henderson wrote:
>> There isn't a linear relationship between the rotational speed of the
>> wheels and the speed of the engine.
> 
> There is, in a (relatively primitive) manual transmission. There is not,
> however, a linear relationship between engine RPM and gasoline usage.

How many cars use a transmission that would count as "relatively 
primitive"?  But I do agree that there's not a linear relationship 
between RPM and MPG.

>> Similarly, if I apply the brakes to a full stop, the engine doesn't
>> die, it idles.
> 
> When did you last drive a manual transmission? :-)

D'oh!  I was thinking automatic - I learned to drive on a stick....

Jim

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