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what is this on my plugs?

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#1

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05-26-2005, 02:46 PM

Ethan

Ethan is offline

Registered User

Join Date: Feb 2002

Location: east coast

Posts: 1,255

what is this on my plugs?

anyone know what causes the brown caramel like substance on the ceramic portion of the spark plug as shown in the picture?
The substance will scrape off.
My spark plug wells were nice and clean when I removed the plugs.
I saw nothing that revealed a coolant or oil leak?

Scott
1998
C-230
75Kmiles on car
40K miles on spark plugs

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