Rick
Your a gas He He He
Sorry, couldn't resist (-;
Jim Schulte
Aquatic Coordinator Souderton S.D.
Co-Secretary Philadelphia MG Club
Co-Coordinator MG 2008
Eastern HS WP Officials Scheduler
>From: Rick Lindsay <rolindsay@yahoo.com>
>To: Monte/Jane Morris <montejane@gmail.com>, "Dodd,
>Kelvin"<doddk@mossmotors.com>
>CC: MG List <mgs@autox.team.net>, healeys@autox.team.net,Ron Fine
><RonFineEsq@earthlink.net>
>Subject: Re: [Mgs] Old Gas
>Date: Wed, 14 Nov 2007 06:03:59 -0800 (PST)
>
>Just read this thread and it caused me to think.
>
>Gasoline (or petrol) is a specific mixture of
>hydrocarbons plus a tiny fraction of additives
>professed to make big differences. That knowledge
>leads to two points.
>
>(1) Since all gasoline is basically the same, brand
>name means very little. In fact, I select my fuel
>supplier NOT based upon the vendor brand name but on
>the volume of fuel they sell and the cleanliness of
>their facility. The first bit assumes that if there
>is a lot of turnover, the chance of water or other
>contaminates is less, and if the facility is clean,
>neat and well maintained then perhaps the tanks and
>delivery system is as well.
>
>(2) Since gasoline is a mixture of hydrocarbons, all
>with different PVT properties, it should be obvious
>that the 'lighter' hydrocarbons evaporate first. That
>means that old gas is not the same composition as new
>gas. In fact, the fact that lighter constituents
>flash off to the gaseous state quicker is why its easy
>to start a car with fresh fuel. The heavier
>components need more heat to get them into the gaseous
>state for combustion. (Remember back there in
>chemistry 101 when they said that all materials
>oxidize in the gaseous state?)
>
>Good stuff. I like it when the list turns technical.
>:-)
>
>rick
>'70 MGB Tourer
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