I have usually run the highest grade (since we are both in Co it is the same as
your, I work about 15 min outside of boulder) in my '68 engine. Now I have a
'77 with lower compression. Probably won't matter a bit either way. There is
actaully 2 places I know of in the area that will pre-mix a lead substitute
fuel and call it regular out of the pump. I used that until I replaced my head
with the AL one.
On Wed, 5 Jul 2000, James Nazarian Jr wrote:
> Bassically the rule of thumb is to use the lowest octane that you can
> without pinging. The recomendation is that number. I run low grade gas in
> my B here Andrew, and have no problems. If you try it and it pings you
> will have to go to higher gas, but I doubt you will have the problem.
>
> James Nazarian
> 71 B Roadster
> 71 BGT
> 63 Buick 215
>
> "Aerodynamics are for people who cannot build engines"
> Enzo Ferrari
>
> ----------
> > From: Andrew B. Lundgren <Lundgren@iname.com>
> > To: Gonaj@aol.com
> > Cc: yd3@nvc.net; mgs@autox.team.net
> > Subject: Re: Octane and altitude ratios???
> > Date: Wednesday, July 05, 2000 10:32 AM
> >
> > That damage to the pocket book is what I am trying to avoid. I have a
> Ford Explorer as well as an MGB that gets 15-16mpg... The owners manual
> says 87 or higher, but I think that is calcualted for sea-level. When I
> buy the highest available octain I get better gas mileage... This is just
> one of lives mysteries I wanted to understand better.
> >
> >
> > On Wed, 5 Jul 2000 Gonaj@aol.com wrote:
> >
> > > Maybe I have misunderstood something in the past, but I am under the
> > > impression that your engine never needs a lower octant it simply
> nosen't need
> > > the higher octane. In other words there is no loss or damage due to
> higher
> > > octane than necessary, other than to your wallet unlike the damage wich
>
> > > results from lower than necessary octane.
> > >
> > > If I am wrong here please explain.
> > >
> > > George
> > >
>
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