I had TSB 14-0196 applied to my vehicle back in 12/14 under warranty which consists of replacing the rear valve cover,oil seperator,etc,the reason me posting this was many of you asked me exactly what to look for and simply just look around the rear valve cover for any visible signs of oil,and also as mentioned above oil inside the spark plug wells,especially #6 is very prone to having oil inside but mainly the the rear bank #4,5,6,hope this helps someone. Z