I have an '07 Edge and have been through 7 PTU seals and 1 axle so far. On the 6th replacement it was the "New" engineered seal, it only lasted 2 days and the car was back into the dealer for the burning small and leaking. They have replaced it once again with the "New" engineered seal this week but I don't have much hope that it will be the final cure. I hope you all have better luck than I have had.