I have had a mystery oil leak for a few Months. At first I could see it on the inspection cover on trans. It wasn't much so I pushed it aside. I was underneath it tonight and there was quite a bit of oil. Now I can see it all over the area of oil pan and around filter. Filter is tight gasket is good. See attached pics. It looks like there is something above the oil filter that seems to be the origin of the leak maybe. What is this???