Quick update/question-
I pulled a couple plugs list night. There was indeed oil in the chambers. Thus, I'll change the valve cover and gaskets (changed gaskets about 4 months ago) in case the cover is warped.
But take a look at the color of the plug. This looks lean to me, but my experience is more with American V8 race engines so I want to get other's opinions. This plug only has about 5K miles on them. Thoughts?
Thanks!