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From: aptr@ur-tut.UUCP (The Wumpus)
Newsgroups: net.auto
Subject: Re: 98 octane gasoline
Message-ID: <8@ur-tut.UUCP>
Date: Mon, 3-Mar-86 12:30:59 EST
Article-I.D.: ur-tut.8
Posted: Mon Mar  3 12:30:59 1986
Date-Received: Fri, 7-Mar-86 03:14:23 EST
References: <2094@dutoit.UUCP> <82600026@convex>
Organization: Univ. of Rochester Computing Center
Lines: 36

> 
> 
> >Does anyone know where I can obtain 98 octane LEADED gasoline?
> 
> >Any suggestions as to which is the best &/or the most cost-effective solution?
> 
> Just go to the nearest general aviation airport and ask for 100 octane (the
> GREEN STUFF). If they don't have any, ask for 100LL (Low Lead) , the BLUE
> stuff. Cost is between $1.75 - $2.00 / gal. This should fix you up!

Having a '65 Volvo 122 with a B18 engine makes me familar with the problem of
finding high octane fuel.  One of the first things to be considered is that
during the '70's the rating system was changed.  The new rating system is about
5 less then the old system (ie. 98 old = 93 new).  If your car should still
need high octane, I suggest using an octane booster.  It should be avalable
at almost any auto parts store.   I would also suggest using unleaded gas.  
It is possible that you really don't need the lead in the gas for your car 
to work right.  The only problem with running unlead gas is that the lead
in the gas is often used as a lubricant, but it is only has a little
effect.  I am currently running my 122 on unlead super octane fuel.
I would also suggest using Sunoco Ultra (that's the stuff I use) 
because it has the highest octane rating of any major brand (93.5).

      You should also be sure that you really need high octane.  High octane
has very little preformance value to a carburated car as long as the car is
getting enough octane.  (ie. if your car runs well with regular, then putting
in ultra won't mean a hill of beans.)  The symptoms of octane starvation are:
       Pinging  during acceleration (this may also be caused by ignition prblm.)
       Power fade    (may also be caused by engine problems, ie broken seal)
       Dieseling   (running on after turning of engine)

      I hope you find the problem.
        The Wumpus

D
low