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Re: Plug Reading

Yep , and to that end , additive packages vary per fuel provider, add to the art of reading spark plugs. Spec additive packages provide us with end results of what they do to plug coloration, from what I've observed along the way. Some blends tend to rapidly deposit the metallic component[ s ] on insulators, tending to muddy the tune up in short order. Others don't color readily /easily , Fuel itself is a variable in the tuning mix. Fuels dosed with aromatics can look fat , when in fact, may be a tad lean , as a variable. GM deals with these issues in calibrations as well , it's a big variable producing vehicles that work anywhere under nearly any conditions. 
 Len


Red / Pinkness, is from manganese, just don't try a never change the plugs
attitude (not that I think you would), just they crap out at idle easily
when too much red deposits
Bruce


----- Original Message -----
From: "Mike Rolica" <mrolica@meridian-mag.com>
To: <gmecm@diy-efi.org>
Sent: Wednesday, August 16, 2000 8:20 AM
Subject: RE: Plug Reading

> I like tan to redish brown....i liKke it,,,.. my favorite colour.....
> Mike Rolica
> Plant A,
> Magnesium Products Division
> Strathroy
>
> (519)-245-4040  Ext. 244
>
>
>
> -----Original Message-----
> From: Bruce Plecan [SMTP:nacelp@bright.net]
> Sent: Tuesday, August 15, 2000 11:50 PM
> To: gmecm@diy-efi.org
> Subject: Plug Reading
>
> Circle track and racing technology has an article and pics about
> plugs
> I caution you that the plugs they show are extreme examples.
> They try to show tell a difference in detonation, and preignition,
> both are
> about the same thing plug reading wise, gnerally, and the cures the
> same
> They also subscribe to the gray is fine club, ughhh, sure, Oh well.
> Bruce
> 87 Black Car
> Vader, Paging Mr Vader, Paging Mr Darth Vader your car is ready
> hhehehehe
>
> ----- End of forwarded message from owner-gmecm@diy-efi.org -----
>
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