[ROVERNET - UK] No messages

[Paul Smith]

The motor method is what Ricardo originally developed.
It was later correlated to a lab based RON.

PVS

-----Original Message-----
From: Kent Kinard [mailto:kkinard at swbell.net]
Sent: Thursday, 8 September 2005 11:21 pm
To: rovernet at lyris.ccdata.com
Subject: Re: [ROVERNET - UK] No messages


Hi Paul,
The US does compute octane differently.  All petrol pumps have a sign on 
them which explains that advertised octane numbers are computed by 
averaging the "motor octane number" and the "research octane number". 
The motor method is an older means of determining octane by burning the 
fuel in a standard test engine and measuring the the compression ratio 
of the point at which preignition occurs. If I'm slightly off in my 
explanation someone can correct me.

Rovercompressedly,
Kent K.

Paul Smith wrote:
> Since the Research Octane Number was developed in Britain by Sir Harry
> Ricardo and relates to the effective percentage of Octane vs Cetane, I
must
> Wonder what numbers the Americans use; how can you have a lower number,
> unless "octane" has a different meaning in US....
> 
> PVS
> 
> -----Original Message-----
> From: Peter Huttemeier [mailto:peterhut at melbpc.org.au]
> Sent: Thursday, 8 September 2005 2:19 pm
> To: rovernet at lyris.ccdata.com
> Subject: Re: [ROVERNET - UK] No messages
> 
> 
> On Wed, 07 Sep 2005 22:20:00 -0500, you wrote:
> 
> 
> 
>>You guys in the UK must use a different octane standard that we do.
Typical
> 
> 
>>numbers here in the US are;
> 
> 
> No we are in Oz. 
> 
> 
> Cheers,
> 
> Peter H
> 
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