(Dormant) private/commercial pilot here. 110 octane hasn't been available
since before I started flying almost 30 years ago (too much TEL). Best you can
get is 100LL ('LL' stands for low lead, which is a misnomer because I believe
it's only maybe 30% less TEL than 110). It's blue in color:
https://en.wikipedia.org/wiki/Avgas
It'll be phased out over the next decade or so. Even rarer is 80-octane avgas,
which older, lower-compression engines prefer--still has TEL, though--but many
of them can run premium auto gas. 100/130 is available, supposedly, in a few
places but I've never seen it offered.
I haven't checked the compression on my BJ8's rebuilt engine, but it should be
a bit higher than nominal, and so far it seems to run fine on 'premium'
(91-octane here in CA).
Bob
--------------------------------
Bob Spidell - San Jose, CA
> On April 30, 2017 at 10:37 PM i erbs <eyera3000 at gmail.com> wrote:
>
> I buy aviation fuel at 110 obtain and mix 4 gallons in and then fill with
> premium unleaded.
>
> Ira Erbs
> 1959 100-6
> MKI engine and disc brakes
> excuse typos and strange words my phone wants you to see.
> Portland,OR
>
> On Apr 30, 2017 10:21 AM, "HealeyRick" <healeyrik at gmail.com
> mailto:healeyrik at gmail.com > wrote:
>
> > > Hi Ken,
> >
> > The Road and Track test for the BJ8 only states "premium" fuel is
> > required. Premium in 1967 would have been about 99 octane.
> >
> > Happy Healeying,
> >
> > Rick Neville
> >
> > On Sun, Apr 30, 2017 at 11:33 AM, goldengt <goldengt at cal.net
> > mailto:goldengt at cal.net > wrote:
> >
> > > > > What octane rating was the bj8 likely
> > designed for? 95?
> > > Ken Freese
> > > 65 BJ8
> > >
> > >
> > > > >
> > >
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