Hi, my problem is oil soaked plugs totally, threads, electrode, oil just dripping off the plug when I took them out. Also a puddle of oil on top of the piston, I don't think this is a valve cover gasket in my case. I'm thinking valve guides or seals. I just put new plugs in it and I will check it once a week, when they get soaked again I will take it to the dealer ( I bought an extended warrenty) I will report my findings later. This should not be happening at 45000 miles!!!!!!!!!