UK fuel crisis

[Tspitfire at aol.com]

In a message dated 9/13/00 9:02:17 AM GMT Daylight Time, sholtby at yahoo.co.uk 
writes:

<< Dave,
 
 Yes I thought LRP could not be used in a CAT equiped car but thanks for
 confirming it. Something people do not consider is that the Lambda probe
 will be damaged by LRP causing the fuel mixture to be incorrect. This is
 particularly relevent to owners of pre-93 Audis that have CATs fitted but
 are not required to do so by law and so remove the CAT either to improve
 performance or because it has failed. 
 
 I was interested to read that you do not recommend LRP for use in a 84 UR
 as its additive has not been proven. But I thought all Audis since the mid
 seventies have had hardened valve seats so is the use of additives not
 irrelevant. The reason I use LRP is because I need higher octane than 95
 unleaded and it is cheaper than 98 super unleaded. Is not 97 octane near
 enough to 98?  98 is becomeing as cheap as LRP so I may start using that
 soon or I may retart the ignition so as to use 95.
 
 Regards
 
 Simon Holtby
 '84 urq
  >>
Simon
    You cannot retard the ignition timing on the WR engine as it is set with 
the engine static and is a pre-set map controlled by the ECU. The timing is 
altered to suit a number of factors such as speed, load, turbo boost, etc. 
Phil can probably give you more info.

Dave Griffiths (Scotland)
84 Ur Quattro
89 100 Quattro
74 Triumph Spitfire MKIV