oil on spark plugs


paul b

GT Owner
Nov 2, 2006
810
I removed my plugs the other day to do an inspection, I was surprised by the amount of oil on the plug threads. I am used to seeing a few threads with a little oil, but all the threads were wet. Is this normal or do I have a problem? By the way, the plugs themselves were dry and looked normal.
 

jcthorne

GT Owner
Aug 30, 2011
792
Houston
Its the valve cover gaskets at the spark plug holes. They are seeping a little. As long as there is no puddle in the spark plug bores, its not much to worry about. Then again, they are simple to replace.
 

Art138

GT Owner
Mark II Lifetime
Jan 4, 2011
629
Weston,FL
I changed mine to NGK TR6IX yesterday; during the process, I did not see oil on the threads but then I have a low mileage car.