2004 Dodge Ram 3500 Pickup Owner Manual Diesel - Page 212

212 STARTING AND OPERATING Fuel Operating Range NOTE: Refer to Fuel Requirements in this section for further details on fuel recommendations. Engine Block Heater The engine block heater warms engine coolant and permits quicker starts in cold weather. Connect the heater cord to a ground-fault interrupter protected 110-115 volt AC electrical outlet with a grounded, three-wire extension cord. *No. 1 diesel fuel should only be used where extended arctic conditions (-10°F/-23°C) exist. NOTE: • Use of Climatized Diesel Fuel or Number 1 Diesel Fuel results in a noticeable decrease in fuel economy. • Climatized Diesel Fuel is a blend of Number 2 and Number 1 Diesel Fuels which reduces the temperature at which wax crystals form in fuel. The engine block heater cord is routed under the hood to the right side and can be located just behind the grille near the headlamp. NOTE: The engine block heater cord is a factory installed option. If your vehicle is not equipped, heater cords are available from your authorized Mopar௡ dealer. The block heater must be plugged in at least one hour to have an adequate warming effect on the coolant.