re: "Your 91 octane in the US is PON? MON?"
Our octane rating is always (RON+MON)/2; i.e. the average of RON and MON. Our
91-octane has the same anti-detonation characteristics as Aussie 95-octane
(guess Aussies like to use a bigger number--150mm sounds a lot longer than
6inches ;).
Never heard of PON, and a quick Google search turns up bupkis.
bs (more appropriate than Bob at this point)
--------------------------------
Bob Spidell - San Jose, CA
----- Original Message -----
How does the world measure octane?
Well. There is
MON
And there is
RON
And there is PON
Your 91 octane in the US is PON? MON?
Healeys are British cars. Imperial measurements. We use RON.
Does the manual specify pints and gallons? Is a pint a pint??
should you just assume when the manual says pints/gallons they are US pints??
Or read it closely and see they (being British) refer to Imperial pints?
If I bought a 1960's Mustang, in Australia, I'd probably just assume that
pints/gallons were US gallons. Not "my" pints/gallons. Mine, being Australian,
were Imperial.
I'm 53. 5 star 100 octane?? Imperial 100 octane?? That would be RON - just like
the 100 Octane fuel they sold in England? The 5 star 100 octane referred to in
BMC manuals???? RON.
That's old school leaded 'super'
They only stopped selling that in Australia about 20 years ago.
Sometimes, you need to read the measurement. RON. MON Imperial pints. US pints.
Anyway. The issue is about the advance of the ignition for the octane.
Thank goodness there aren't US degrees, or this thread would never end......
;-)
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