My car has a bit over 100k on it. The original ownwer did little to maintain the car. I pulled the plugs and found oil all over the sides of them and some of the threads. NONE on the spark end and after looking down at the top of the piston the pistons look dry and oil free. Is this a sign of failing vavle cover gaskets, cloged PCV hose or valve?
I installed brand new plugs and on the up side the engine runs alot smoother. not to fix this oil prob and exhuast leek and it should be quite and smooth again.