Mailing List flyrotary@lancaironline.net Message #21701
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: Synthetic Oil and Leaded Gasoline.
Date: Tue, 10 May 2005 08:03:36 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Thanks for the link, Jesse,
 

It appears that rotary engines are not the only auto conversion with problems with SAG from having lead foul the plugs.

Some white deposits may be seen on the plugs and in the exhaust pipe during use, this is normal with TCP since the lead in the fuel is being converted to non conductive lead phosphate.  When no additive is used, lead oxide is formed.  It is lead oxide which causes plugs to misfire due to its partial conductivity shorting out the plug.  In addition, lead oxide tends to form in large clumps or clinkers whereas the lead phosphate is a crumbly and if any is left behind in the combustion chamber it deposits in even layers. 

Ed

----- Original Message -----
From: jesse farr
Sent: Tuesday, May 10, 2005 7:26 AM
Subject: [FlyRotary] Re: Synthetic Oil and Leaded Gasoline.

Without going into the reliability of those forming opinions from net talk, like p. salanger and ilk, as regards mcdonald's coffee suit propaganda, the synthetic and leaded fuel problems do seem to be real. <g> And, the piston crowd also seem to be aware of it, with most going to mogas. (Can't be killing more dinosaurs, I guess; or, maybe syn oil really is better.) Decalin www.decalinchemicals.com seems to be a rather positive attitude approach, if you want to go that way.
 
jofarr, soddy tn
----- Original Message ----- From: WRJJRS@aol.com
 
Ed, While I don't totally discount that there could be some (MINOR) problems. I would remind you that McDonalds was sued by some idiot that spilled hot coffee in their own lap! Just because it's litigated don't necessarily mean that it's true!
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