2005 Dodge Ram 2500 Pickup Owner Manual Diesel - Page 235

STARTING AND OPERATING 235 Driving Condition Stop and Go Stop and Go Highway Speeds City Traffic Highway Speeds Uphill Grade Load Empty Medium Medium Maximum GCWR Maximum GCWR Maximum GCWR Idle Time Turbocharger (min.) Before Temperature Engine Shutdown Cool Less than One One Warm Two Three Four Hot Five Engine Speed Control CAUTION! Prevent overspeeding the engine going down hill. When descending steep grades, use a combination of gears and service brakes to control vehicle/engine speed. Overspeed can cause severe engine damage. 5 Operating Precautions Avoid Overheating The Engine The temperature of the coolant (a mixture of 50% ethylene-glycol and 50% water) must not exceed the normal range of the temperature gauge (240°F/116°C) with a 16 psi (110 kPa) radiator cap. Usually the coolant temperature indicated during operation will be to the left of center in the normal range of the gauge.