Dude... that's not a leak... Fords do not leak... it's called Normal Operating Freshness Seepage... its there plain as day in the Ford Service Manual....
"... what may to the untrained eye be an oil leak, as Ford products do not leak this is most certainly not the case. For several decades now, FoMoCo drive train components feature a tried and tested unique feature to assure fluids are fresh, this feature is known as the "Fluid Freshness Seepage". It assures that all fluids in FoMoCo component have fresh fluid in at all times. Normal operation of this feature will show puddles, wet spots, drips, and other signs of what may be consider “a leak”, but this is merely the proper operation of this feature. Normal operation only requires that the fluid levels be topped of and maintained and that filters be changed at their indicated interval. If fluid seepage is not present, this indicates either the fluid level has dropped below acceptable levels and must be replenished, or it is not working properly and must be taken in to an Authorized Ford Service Center for proper repair, service, and/or calibration. Never attempt to alter, modify, or change the operation of this feature as it will void any warranty expressed or implied.”1
See… Chevy guys worry about leaks from time to time… and try to fix them. With a Ford… it’s built in and supposed to be there.
1. FoMoCo Service Manual, Dearborn, 2009 Pgs 203-204