UK fuel crisis

[SIMON HOLTBY]

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 recomment 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

--- Tspitfire at aol.com wrote: > In a message dated 9/12/00 9:14:23 PM GMT
Daylight Time,
   
>     LRP fuel will damage a cat just the same as the old 4 star fuel
> would. I 
> would not recommend you use LRP in your Ur. The additive in this fuel
> has not 
> been tested as far as I know by any of the test houses who have endorsed
> 
> other additives. I would advise you to use super unleaded with an
> additive 
> such as Castrol Valvemaster which has been tested by several classic car
> 
> authorities. Use the version with the octane booster because super
> unleaded 
> is only 97 RON (as is LRP) and the WR engine needs 98 RON min. LRP also
> burns 
> hotter and will gum up your engine.
> 


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