Oil on spark plugs thread
I have 2010 SS with 60k miles on it. I don't know if the plugs were changed before since i got the car around 6 months ago. Decided to go with 41-104 plugs so i pulled the old plugs out and cylinders 1,4,7,8 had oil on the thread. The rest had much much less. I've attached photos of the plugs of someone can help me out with the reading too and whether the oil on the plugs thread is a sign of something wrong.
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2015 CAMARO 1LE
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