TL* THE CONTACT OWNS A 2014 KIA OPTIMA. WHILE THE VEHICLE WAS IN MOTION, BLACK SMOKE APPEARED FROM THE REAR OF THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER, BUT THEY WERE UNABLE TO PROVIDE A PERMANENT REMEDY FOR THE REPAIR DUE TO EXCESSIVE SLUDGE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 30,000.