Crankcase (pcv) problems of the 2018 Ford Escape

At approximately 64,500 miles, my Ford Escape was diagnosed by a Ford dealership with coolant intrusion into 3 of 4 cylinders. At the time of diagnosis, the vehicle was still driveable, but the diagnosis indicated a serious internal engine problem with the potential to cause sudden engine damage or failure. Prior to diagnosis, I noticed the coolant level repeatedly dropping for over one year without an obvious external leak, no other symptoms, and no check engine light. I first noticed the issue during an oil change, when a mechanic pointed out that my coolant reservoir was nearly empty and refilled and flushed the system. The coolant continued to drop afterward, and I monitored and refilled it as needed. Had I been informed of coolant intrusion and its risks, I would have been much more concerned. About a year later, my car began to shake a little. The very day the check engine light came on, I brought it to a mechanic where I spent over $2,000 on repairs related to engine symptoms, including replacement of the air oil separator/pcv-related components and spark plugs. One week after this repair, the engine light returned, and I brought the vehicle to Ford, where the underlying coolant intrusion issue was identified. I am concerned that coolant intrusion in the 1. 5l ecoboost engine may represent a safety defect because it can result in misfires, loss of power, engine malfunction, and potential engine failure while driving. This issue appears to affect multiple vehicles with this engine, and owners may not receive adequate warning before experiencing significant engine damage. In my case, the vehicle had relatively low mileage, was properly maintained, performed normally, and did not provide adequate warning that such a significant engine defect was developing. Although the vehicle was still operational when diagnosed, the recommended repair was financially impractical, and I ultimately had to sell the vehicle for scrap, resulting in a significant financial loss.