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.
71 B Roadster
63 Buick 215
"Aerodynamics are for people who cannot build engines"
> From: Andrew B. Lundgren <Lundgren@iname.com>
> To: Gonaj@aol.com
> Cc: email@example.com; firstname.lastname@example.org
> 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
> > the higher octane. In other words there is no loss or damage due to
> > 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