I have always noticed black soot filled water dripping out of my exhaust. I have also noticed small oil stains forming where I park my truck. The location of the drips is just behind the motor in the center of the vehicle. Not sure if this is an exhaust drain hole or a leak in the exhaust. Most recently, there are some large oil stains developing, tail pipe is black on the end as well. I am furious that my 2 year old driveway is being ruined by my "new" truck. I guess I will have to waste my time yet again taking it to the dealer probably only to hear "this is normal sir". Anyone else experiencing this? I have read it's a problem on the F150 ecoboost as well. Not sure why these things are set to run so rich. I always notice the amount of exhaust fumes at startup is far more than what you would expect from a modern vehicle. If anyone has a TSB or documentation for this issue please post.