<VV> Re Leaded Gas

[henry kaczmarek]

John
I agree that there was TOO much lead in gas .

If that 2 inches of grey goo in the bottom of a 48 Packard's gas tank I 
cleaned out once was lead, I should die from lead induced cancer any day 
now.

If only the petrol companies had developed a Low Lead gasoline like used in 
Aviation, we could still have 110 octane to run in a Corvair. I could relate 
to the difference in performance of 17 more octane points.

Hank


----- Original Message ----- 
From: <JVHRoberts at aol.com>
To: <rhino60 at direcway.com>; <VirtualVairs at corvair.org>
Sent: Tuesday, April 19, 2005 6:48 AM
Subject: Re: <VV> Re Leaded Gas


> Tetraethyl lead was developed as an octane enhancer, and a damn good one. 
> 1
> gram per gallon boosted octane something like 6-10 points, depending on 
> the
> base blend.
> The downside is, it coated everything with deposits, poisoned catalytic
> converters, and required a lead scavenging additive, typically ethylene 
> dichloride,
> to keep said deposits down to a minimum. Not to mention the issues with 
> ALL
> the environmental lead contamination!
> Later, it was discovered, it acted as a dry film lube. Not needed in 
> engines
> with hardened valve seats.
>
> Frankly, I am VERY glad to see this evil stuff GONE! I had several turbine
> housings just CLOGGED with this crap. Not to mention the backsides of the
> exhaust valves, piston domes, combustion chambers, etc. Unleaded just 
> doesn't crap
> up an engine like this.
>
> In a message dated 4/19/2005 12:15:52 AM Eastern Standard Time,
> rhino60 at direcway.com writes:
> Hi... Just  bought a 180 Turbo 1966 Corsa and was wondering if a lead
> additive should be added to the 93 octane I will probably put into the 
> car. I live in
> NY if that has any bearing on the subject.
>> Thanks for any advice
> Or, why not use toluene as an additive?  I vaguely recall it is 120 or so
> octane.  Somewhere on the web is a formula for net octane vs. ratio of 
> toluene to
> 93 octane fuel.
> Snip
> I thought lead was use in the gas to help the Valves from beating the 
> seats
> out of the heads.  Also some lubricating properties, not octane.
> Nick Abellera
> 65 Monza V-6 in Progress
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