I had my oil changed for the first time, 2015 Edge Sport, in Phoenix while on vacation in Feb. Went to a local Ford dealer with a Quick Lane. I am now home, 1300 miles away, and I am getting oil spots on my garage floor. The drain plug is apparently leaking. I will assume it is the O ring on the plug. I have a Harley and I always replace the O ring on my drain plugs. Has anyone looked into the size of the O ring? The O rings can be purchased bulk real cheap if you know the size. I will probably have to get another oil change to fix the leak.