In article ,
Spehro Pefhany wrote:

Include the value of your time vs. gas cost and I wonder what is the
optimal speed? A fair bit higher, obviously, assuming your time in the
car is not otherwise useful, and assuming you'd otherwise be doing
something useful, not just wasting time posting on usenet or
something.

When I include the value of my time, the optimun speed is 80 mph

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