Yeah so my Jeep GC 4.7 just puked oil everywhere. I left from work, it was about 5 deg F. Warmed it up for about 3 minutes drove about 30mph for a few minutes and then I smelled oil burning. Thought it was just some old POS burning oil in front of me. Got on the highway and saw a fog behind me. Drove it about 10 miles and decided to pull into a gas station. Under hood oil puked out of the valve covers. Underneath it was dripping from the back side of the oil pan. (BTW I have patched the pan a few times and put off replacing it) i removed the oil cap and the normal watery/sludgy gunk that you normally find there was frozen. So I'm thinking my PCV system may have been frozen and caused a lot of pressure in the crankcase and it blew out that oil. Seen that on other engines, just not to that degree. So as it's running there is a steady drip from underneath on the exhaust. Has anybody experienced this on a 4.7?.