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Discussion Starter #1 (Edited)
Anyone know what can cause oil on spark plugs?

I believe a old valve cover gasket can be a problem but I’m not sure,

At first it was having a cylinder 1 misfire until I replaced the spark plug and discovered the old one was oily swapped it and It started running again,

1 1/2 months later it returned? Any thoughts? No smoke or oil consumption that I know of
 

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Howdy and Welcome.!

Just a word of encouragement about posting on forums.

Punctuation helps a lot.

In addition, an extra line feed helps make posts a bit easier to follow and read.

The oil seals could be failing, or worse the rings could be gone. How’s your compression?
 
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