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Path: utzoo!linus!security!genrad!grkermit!masscomp!clyde!floyd!harpo!ihnp4!we13!we53!bmt
From: bmt@we53.UUCP
Newsgroups: net.auto
Subject: Re: Lead additives lubricate?
Message-ID: <202@we53.UUCP>
Date: Tue, 24-Jan-84 13:12:19 EST
Article-I.D.: we53.202
Posted: Tue Jan 24 13:12:19 1984
Date-Received: Fri, 27-Jan-84 08:01:10 EST
References: <352@ihuxa.UUCP>
Organization: AT&T Technologies - St. Louis Missouri
Lines: 12

I am told that they do.  Before they were introduced, there was a bad 
tendency for exhaust valves to seal poorly and burn prematurely.  The 
lead helps to seal and lubricate. 
	The main reason, looking back, for unleaded gas(notwithstanding 
all the noise that was made about lead pollution) seems to have been the 
introduction of the catalytic converter.  Catalytic converters are 
quickly destroyed by the lead additives, and at 500 bucks a crack, that's 
a problem.  Cynically, I wonder if the big lead scare was not engineered 
to ease the introduction of this chemical marvel which added a healthy 
chunk to the price of the autos.

	(ihnp4!we13)!we53!bmt(Brian Thomas @ AT&T Technologies, St. Louis)