NHTSA Complaint #11507474 — 2012 HYUNDAI SONATA

3 Months post oil change June 2022, oil plug fell out on highway and motor seized. Dealership advised motor no longer manufactured and recommended used motor supplier. Purchased a used motor with 80K on engine, had it installed in June of 2022. Dealership did oil change in December 2022, in February 2023 noticed oil smell and oil on the ground in driveway. Added 4.25 quarts of oil and started motor, attempted to locate the leak when noticed leak below motor. Turned off motor and found oil dripping from under car near the oil drain plug. Reached under car and touched oil drain plug with finger and plug fell out draining all oil to the ground. Had vehicle towed to the dealership, new oil change completed. Demanded the dealership install new oil drain plug, torque to manufacture specifications and apply lock tight to plug. Dealership stated they no longer remove the oil drain plug due to customer complaints and stated they only pump out the oil. When i asked them if that was a manufacture recommendation or their own they stated they started doing it due to multiple complaints from customers. Two engines 8 months apart, oil drain plug coming lose and falling out not a coincidence.