TL* THE CONTACT OWNS A 2008 FORD F-250 SD. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS HE NOTICED THAT WHITE SMOKE WOULD EMIT FROM THE EXHAUST SYSTEM. THE CONTACT STATED THAT THE EXHAUST SYSTEM WAS EQUIPPED WITH A SELF-CLEANING FUNCTION HOWEVER, THE WHITE SMOKE STILL EMITTED AFTER THE FUNCTION WAS COMPLETED. THE VEHICLE WAS NOT TAKEN TO THE DEALER OR AN INDEPENDENT MECHANIC. THE MANUFACTURER WAS CONTACTED AND THEY OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS APPROXIMATELY 179,000. THE CURRENT MILEAGE WAS APPROXIMATELY 180,000. THE VIN WAS UNAVAILABLE. *TR