What water temperature is recommended for best dishwasher performance?

For best dishwashing results, water should be 120°F (49°C) as it enters the dishwasher. If the incoming water is cooler, the dishwasher will automatically extend the cycle to compensate by adding time and heat. It is recommended to run hot water at the nearest sink before starting the dishwasher to help ensure proper incoming water temperature. (Page 7)