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Posting-Version: version B 2.10.2 9/18/84; site watrose.UUCP
Path: utzoo!watmath!watnot!watrose!tohaapanen
From: tohaapanen@watrose.UUCP (Tom Haapanen)
Newsgroups: net.auto.tech
Subject: Re: 98 octane gasoline
Message-ID: <7847@watrose.UUCP>
Date: Wed, 26-Feb-86 10:27:32 EST
Article-I.D.: watrose.7847
Posted: Wed Feb 26 10:27:32 1986
Date-Received: Fri, 28-Feb-86 05:48:05 EST
References: <2095@dutoit.UUCP>
Reply-To: tohaapanen@watrose.UUCP (Tom Haapanen)
Organization: University of Waterloo, Ontario
Lines: 36

In article <2095@dutoit.UUCP> ssp@dutoit.UUCP writes:
>
>The problem is that I have a European specification car with the following
>engine:
>		capacity:	1781cc
>		stroke:		86.4mm
>		bore:		81mm
>		compression:	10.0
>
>which produces 82kw at 5500rpm and 157Nm at 3100rpm. According to the book,
>it requires 98 RON (Research Octane Number indicating anti knock properties
>of the petrol) Premium petrol. What car is it?

The answer is obvious ... a European-spec VW Golf GTI.

>Three "solutions" have been suggested to me:-
>1) Mix regular leaded and super unleaded in egual proportions.
>2) Use octane boosters.
>3) Use racing (114 octane) fuel!

4) Reduce compression (alas, also reduces power output)

>Any suggestions as to which is the best &/or the most cost-effective solution?

Regular leaded/super unleaded is definitely the most cost-effective,
but it may no longer work with the lead content in leaded down to 0.1
grams (or was it milligrams?).  Can the European GTI's engine
compensate for lower octane ratings by retarding timing?  Then you
could just add octane boosters when you need the performance.

				   \tom haapanen
				   watmath!watrose!haapanen
I'm all lost in the Supermarket
I can no longer shop happily
I came in here for that special offer
Guaranteed personality				 (c) The Clash, 1979