I just encountered a common oil leak coming from the oil filter/cooler housing. We purchased our Wrangler Unlimited brand new and for the most part has been a reliable vehicle. The repair shop that is fixing this issue says they have seen many 2012 forward 3.6 Wranglers with this issue. I'm posting this so that if it happens to you, and I'm also writing to Fiat/Chrysler in the event that they happened to address this design flaw.