In article ,
Richard Riley wrote:
On Tue, 15 Jul 2003 21:42:27 -0500, Big John
wrote:

:Jim
:
:115-145 octane (purple color) used in WWII aircraft would burn you
:also. I've had a fuel tank, after sitting in hot sun, gush out when
pened to check fuel level and I had to go in and shower and put on a
:new flight suit to prevent burns and blisters on my chest and arms.
:
:The 115-145 also worked in Zippo lighters. When I pre-flighted and
:checked tanks for water I held Zippo in stream. When just filled
:would flame up 3-4 inches even in strong wind. G
:
:I've also had one filled fresh, leak at altitude (no cockpit
ressurization in P-51) and burn by ankle/leg.
:
on't think they make that stuff any more even on special order?

They must have it at Reno, at least. And there's a small refinery
here in So Cal that sells racing fuel, I've heard of them doing up to
150 octane (I don't know how that's chemically possible, but that's
what they say)

An octane "rating" of over 100 simply means that it has anti-knock
characteristics that are *better* than 100% octane. You graph the
knock resistance vs the % octane, and 'extrapolate the curve' right
of the 100% value. No big deal.