Reid Vapor Pressure?

[juliemac57 at hotmail.com (Julie Macfarlane)]

Sorry, when I typed gov (without enough coffee) I meant the federals. Gas to 
be sold in the disaster areas dfo not have to meet the federal guide lines.

Your explaination was a good one. Thanks!



Julie Macfarlane
"Its not just a car! Its an adventure!"
1981 MKI 2L 16v w 2Y
Amsterdam NY





>From: Spewey <spewey@comcast.net>
>To: scirocco-l@scirocco.org
>Subject: Re: Reid Vapor Pressure?
>Date: Wed, 31 Aug 2005 08:42:19 -0500
>
>Julie Macfarlane wrote:
>>Ok. The Gov said the gas co's can sell a higher rated gas based on the 
>>Reid Vapor Pressure.
>>What is it?
>
>It's just Reid's way to measure how easily gas evaporates.  Lower vapor 
>pressure gas is mandated by state regulatory agencies in warm places or 
>during hot months to reduce hydrocarbon emissions (HCs) which promote ozone 
>generation.
>
>Lower vapor pressure gas "can cause faltering acceleration during sudden 
>wide open throttle applications. Conversely, if a racing gasolineâ??s Vapor 
>Pressure is excessively high (above 8.0 psi), it may well result in vapor 
>lock or fuel percolation hindering fuel flow from the tank to the engines 
>induction under-hood temperatures are encountered."
>
>http://www.241computers.com/ford/ContentExpress20-75-73.html
>
>It doesn't have anything to do with octane so I don't know what your beef 
>with Gov. Pataki is.  All types of gas have an RVP as well as an octane 
>rating.  A higher RVP doesn't raise the octane but can affect performance 
>in other ways.  Can you explain your question better?
>
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