So this morning I was installing new spark plugs in my 2013 Sho pp with 23,000 miles and noticed approximately 2" oil sitting in the hole once I removed the drenched coil. Now the plug in question was in front bank middle plug. I replaced the all 3 rear bank plugs with no issues. And also replace front bank left plug which also had no issues. Has anyone experienced this problem in the past. The car is now at ford to be fixed.