TL* THE CONTACT OWNS A 2016 BUICK ENCORE. THE CONTACT STATED THAT WHILE THE VEHICLE WAS IDLE OR AT START UP THE ENGINE SMOKED. THE CONTACT STATED THAT THERE WAS AN ODOR OF BURNING ENGINE OIL. THE CONTACT STATED THAT THERE WAS EVIDENCE OF OIL ON THE TOP OF THE ENGINE WHEN THE HOOD WAS RAISED. HALEY GMC 9831 MIDLOTHIAN HYPERLINK, RICHMOND VA 23235: 804-250-1322, WAS CONTACTED AND A VALVE COVER REPLACEMENT WAS SUGGESTED. THE CONTACT STATED THAT THE ONSTAR SYSTEM ALERTED OF AN EMISSION FAILURE. A PLUG PART WAS REPLACED WHILE STILL COVERED UNDER THE WARRANTY IN AN EARLIER VISIT TO THE SAME DEALER. THE BURNING ODOR STILL PERSISTED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS 87,064.