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Re: Leaded/Unleaded in the UK

To: Jon Lind <JLind@ColoradoSkiing.com>
Subject: Re: Leaded/Unleaded in the UK
From: Charley & Peggy Robinson <ccrobins@ktc.com>
Date: Mon, 29 Nov 1999 16:20:27 -0600
Huh!

  Interesting stuff.  I DID notice that the octane rating of the reg
unleaded was lower on the northeast coast than it is here in so-central
TX last year.  Next time I'm thru El Paso (W. TX, ~1900') I'll see what
the reg unl is rated at.

  CR

Jon Lind wrote:
> 
> Another thing to consider is altitude.  Here in Colorado (~5000 feet), for
> instance, all the pumps start at 85 octane.  In West Texas (~2000 feet) you
> can't find anything less than 87.  I'm not certain, but it would make sense
> that at higher altitudes fuel burns slower (and mixtures are richer) and
> thus the octane need not be as high.  Of course, in the UK they're at an
> altitude of about 200 feet, and at a rate of 1 point per 1000 feet that
> would mean the UK would need about 90 or 92.
> 
> This is all conjecture, of course.
> 
> <<
> So US 87 equals British 92, or something like
> that. That's while the UK has 97 octane unleaded available, while the US
> only has 92 (94 in Texas, apparently) -- it's the same thing.
> >>

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