[1] : Jargon File (4.3.1, 29 Jun 2001)

your mileage may vary cav. from the standard disclaimer attached to
   epa mileage ratings by american car manufacturers 1. a ritual warning
   often found in unix freeware distributions. translates roughly as "hey,
   i tried to write this portably, but who _knows_ what'll happen on your
   system?" 2. more generally, a qualifier attached to advice. "i find that
   sending flowers works well, but your mileage may vary."

[2] : The Free On-line Dictionary of Computing (27 SEP 03)

your mileage may vary
     
        standard disclaimer attached to epa mileage ratings by
        american car manufacturers a ritual warning often found in
        unix freeware distributions and elsewhere.  translates
        roughly as "hey, i tried to write this portably, but who
        knows what'll happen on your system?"
     
        jargon file
     
        1994-11-10
     
     
see also:
freeware jargon file 

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May Day, definition of term: May Day
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May Be, definition of term: May Be
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