The contact owns a 2017 Ford Fusion. The contact stated that while driving at an undisclosed speed, the low oil warning light was illuminated. The vehicle was taken to an independent mechanic, who determined that coolant intrusion into various cylinders had resulted in engine damage. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. After investigating the failure, the contact related the failure to the Customer Satisfaction Program: 21N12. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 77,500.