|
I changed my spark plugs today. Replaced with stock AC Delco. 88k on the original set. My back two plugs came out wet with oil on the threads and casing. The tips were dry and normal. So the oil is pooling up in the hole not in the head. I do not believe this is from valve seals going bad. I am going to look into where the oil is coming from as I find this interesting.
|