<VV> Oil Additives & Aluminum Blocks

Garth Stapon stapon1 at earthlink.net
Sun Mar 20 11:19:50 EST 2005


University of Western Ontario is considered to be one of best engineering
schools in all of Canada.

LATE POWER GLIDE SEDANS RULE
----- Original Message -----
From: <MSYVairs at aol.com>
To: <virtualvairs at corvair.org>
Sent: Thursday, March 17, 2005 10:27 AM
Subject: <VV> Oil Additives & Aluminum Blocks


> As reported in this mornings issue of carconnection.com
>
> Bill "Swamp-Rat" Hadley
> Denham Springs, LA
>
>
****************************************************************************
*
>
> Oil Additives Bad For Aluminum Blocks?
> A team of chemists and mathematicians at the University of Western Ontario
> deduced that most oil additives are complicated compounds containing zinc
and
> phosphate. They then used computer simulations to find out what happens
"at a
> molecular level when a film of oil containing additives is compressed
between
> two hot, hard surfaces" like engine parts. They concluded that as the
pressure
> rises, the molecules of zinc and phosphate form cross-links with each
other,
> according to a science report in The Washington Post. In engines of steel
> alloys, this process helps minimize wear. But not so in aluminum engines,
where the
> cross-linked molecular hash becomes harder than the metal and abrades the
> aluminum surfaces. In other words, if these guys are right, additives are
good for
> engines with steel parts but potentially harmful if used in engines with
> major aluminum parts, especially on wear surfaces. Experts at the American
> Petroleum Institute told TheCarConnection they were not familiar with the
Ontario
> study. -Mike Davis
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