Well today i changed out my spark plugs. And when i pulled out spark plugs 4 5 and 6 and the bottom half was covered in oil.I Also found out that i was running on 5 cylinders. The number 5 spark plugs wire wasnt connected to the spark plug so that wire has calcium looking stuff inside of it. So now i gotta replace the spark plug wirs. But does that oil covering the spark plugs mean anything??