I am trying to track down an oil leak. The oil seems to be forming around the dipstick hose that goes into the oil pan. The picture here is showing the top of the oil pan with the dipstick. It’s pretty clear that the wrapping is cracked and it’s possible the oil could be leaking from here I suppose. However the oil also appears to be coming from up higher. If you see to the left of the nut there is a hole that fills up with oil. I am also wondering what this hole is, should there be a bolt that goes in there or perhaps a hose that comes out? thanks!