The contact owns a 2016 Ford Explorer. The contact stated while driving 68 MPH, the vehicle shut off unintendedly. After the failure, the engine warning light illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 16V925000 (Engine and Engine Cooling); however, the VIN was not included. The vehicle was taken to an independent mechanic where it was determined there was water in the engine oil. The local dealer was contacted and confirmed that there was no recall on the VIN related to the failure. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 164,000.