Kia Optima severe oil burning issue leading to engine noise and fire underneath vehicle on Kia Optima

Some Kia Optima owners report experiencing severe oil burning issues, which can lead to engine noise and even fires underneath the vehicle. These problems may manifest as engine knocking noises, indicating potential engine damage. Additionally, there have been instances where Kia dealerships had to replace engines due to these oil burning issues. It is crucial for owners to address these problems promptly to prevent further damage to the engine and ensure the safety of the vehicle.