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TQC Fuels

I am running
> nothing but supreme fuel (92).  This has been going on for about 6 months.

Design is 95/98 octane.

 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club

It depends of course on with method is used to calculate Octane.  83 US spec
cars design calls for 91 RON or 87 CLC.  To get 95/98 octane by the, I
believe more common in the US method,  R+M/2, you'll have to go to the local