The best:The Optima has been a reliable vehicle for me. I have put over 200k miles. I know that there have been lots of issues from others with the engine. I have done oil changes every 5k miles with full synthetic. I have only had to do minor repairs.
The worst:Burns oil which is a typical complaint about this vehicle.
Se calienta aun cuando ya se le cambie los empaques de la cabeza , se rectifico la cabeza, se le cambio la bomba del agua, cambio de termostato, antifrizee nuevo, el abanico ventilador si entra y sale…