OT: Oil companies

[davidwinchell2 at sprynet.com (David Winchell, II)]

So this statement from the link you sent completely backs up what Matt
said...

In most countries (including all of Europe and Australia) the "headline"
octane that would be shown on the pump is the RON, but in the United States
and some other countries the headline number is the average of the RON and
the MON, sometimes called the Anti-Knock Index (AKI), Road Octane Number
(RdON), Pump Octane Number (PON), or (R+M)/2. Because of the 10 point
difference noted above, this means that the octane in the United States will
be about 4 to 5 points lower than the same fuel elsewhere: 87 octane fuel,
the "regular" gasoline in the US and Canada, would be 91-95 (regular) in
Europe.

...Nice information to have. I always new it was measured differently, but
didn't know how or why. Still not in depth as to how the numbers are
derived, but a better explanation than I have seen elsewhere.

Thanks,

Dave

David Winchell, II
87 2.0L 16V Scirocco
84 Scirocco BBS Turbo G60
80 Scirocco S
.:R32 DBP
00 Silverado


-----Original Message-----
From: Jean-Claude Desinor [mailto:desinor@sympatico.ca] 
Sent: Saturday, July 29, 2006 12:19 AM
To: scirocco-l@scirocco.org
Subject: Re: OT: Oil companies

   The Canadian owner's manual and the sticker inside the fuel cover of 
my 84 Scirocco says to use minimum 91 RON. But for my 96 Jetta, it says 
to use minimum 87. (Which is why the Scirocco thinks 87 octane is baby 
drink :-) )  Besides, any time I used 87 in the Scirocco, it knocked.

   While the Canadian Gallon is bigger than the US Gallon, you use the 
same Octane rating as we do :-)

   But you are right, I was under the impression that Research Octane 
Rating was the only measure in use. My bad.

   Here is from Wikipedia:
<http://en.wikipedia.org/wiki/Octane_rating>

	Jean-Claude
	84 8V (no matter what, prefers Red)


matt a ?crit :
>  I'm not sure what you are asking but in the United States octane is
measured differently. 91 ron is  equal to 87 octane in the U.S. So in the
states the  minimum recommended octane is 87
> 
> 
>> Matt Wieder
>> 1981 mars red
>> 1984 wolfsburg
>> 1987 8v auto
>> 1983 Audi CGT
>> Louisville, KY
>> 
>> 
>> >  -------Original Message-------
>> >  From: Jean-Claude Desinor <desinor@sympatico.ca>
>> >  Subject: Re: OT: Oil companies
>> >  Sent: 29 Jul '06 00:09
>> >  
>> >     I thought the recommended minimum was 91 RON?
>> >  
>> >  Jean-Claude
>> >  84 8v (87 octane? Bleeh!)
>> >  
>> >  Craig Steiner a ?crit :
>> >  > I've run just about every grade/brand of gas in my '88 16V and the
only
>> >  > thing I ever noticed was the mileage I got.  No noises, acceleration
>> >  > problems etc.  I actually tested this out about 2 years ago and I
could
>> >  > get 360 miles on a tank of 93 octane Shell gasoline during highway
>> >  > driving.  87 octane BP was the worst at 270 miles.  BP was also the
>> >  > worst of the Premium gasolines.  310 miles if I remember correctly.

>> >  > Shell was the best for city driving too, averaging about 330 miles
per
>> >  > tank.  Now, my tests weren't exactly scientific. I'd try to fill up
at
>> >  > the same indicator level every time and would, on average, take
about
>> >  > 10.5 gallons, give or take about .3.  I think I sampled the
different
>> >  > stations enough that most errors probably averaged themselves out.
>> >  >
>> >  > Craig
>> >  > '88 Alpine White 16V


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