We purchased a new 2010 and on the third day my wife pulled into the garage with smoke and dripping oil. I got under the PTU and found oil dripping from the left axle seal onto the exhaust pipe just below the engine. It turns out this in a well known problem. I think there is a whole group devoted to this topic. The long and short of it is that the dealer replaced the seal and there hasn't been a single drip in 25K miles. Unfortunately, I have heard of people having the entire PTU replaced to solve this problem. Ford did have to go through a few revisions of the seal design before they got it right, but this shouldn't be any more than routine repair at this point. Best of luck, - Steve
