I dare not post anything w/o first doing an archive search :-)))

 I did find that Joel Walker posted on this topic back on 17 Sep 94!  (
http://gerry.vanagon.com/cgi-
bin/wa.exe?A2=ind9409&L=vanagon&P=R17458 )

I then did a google.com search related to this topic as I was trying to
find backing for what my mechanic tells me:  Premium gas is 'better' in
that one can go farther on a tank of premium than on a tank of regular
and that one should be looking at costs per kilometre/mile rather than
cost/litre (gallon).  He also suggests that since premium burns more
slowly (I'll assume that this is correct) that there is more of 'push' on
the piston and less of a 'slap' therefore being easier on the engine.

So what did I find on Google?  Nothing.  I tried AAA and CAA too:
nothing.  Can anyone speak to this issue?  Malcolm