The front driver side tire went flat. When a friend tried to remove lug nuts it was discovered that the lug wrench supplied by Ford with the vehicle would not fit over 3 of the 5 nuts. In a youtube video search from home I discovered that Ford had applied a metal coating to the outside of the lug nuts that in time tends to swell and prevents a socket from from going over the lug. Several videos showed people using hammers to force a larger socket over it and using an impact hammer to get the lugs off. Some took 20 mins. to remove. Since our lugs could not be removed on the roadside, a can of FIX-A-FLAT and a short drive on the near flat to a service station allowed them to get the car to a safe place for the night. The next day a call to the SERVICE MANAGER at Dick Hannah Ford dealership in Sandy Oregon (503-809-4711) was no help and he said he had never heard of this before. I called a local outlet (Estacada, Or.) (503-210-5111)of regional tire repair company Les Schawb Tires, and the manager there told me that he sees this all the time. He even completed my description of the problem with added details. He says that he has been recommending the complete removal of all lugs on any trucks or cars that come in with these lugs for years. He is saving all the lugs that come off of my car and has agreed to attest to the facts of what he finds and his past experience with this issue. I will keep the lugs if you would like to inspect them. No one was endangered in this incident.