Leak between engine and transmission
After reading this forum and remembering seeing something odd when I did the last oil change, I put the car up on ramps today and took off the aero cover under the engine to find brown fluid leaking from the seam between the engine and the bell housing. The fluid is slippery so I'm thinking it is transmission fluid.
Recently, I have had some shifts that have vibrated the steering wheel so my guess is the clutches have oil on them.
I went on to the Ford Owners page and scheduled an appointment for 12/11 to have my leak looked at.
TSB 11-12-13 may be in my near future.