2005 Ford F350 Diesel Supplement 3rd Printing - Page 41

Maintenance and Specifications 5. Pull up on the filter element to remove it. 6. Installation is reverse of removal. When servicing the air filter, always be sure that the auxiliary hose is not kinked or obstructed and that it is placed back into the hole in the front cowl near the back of the headlamp. Check all hose and wiring positions. Failure to do so may result in severe engine damage when driving through deep water and/or encountering unusually heavy precipitation conditions. ENGINE COOLANT Checking engine coolant The concentration and level of engine coolant should be checked at the mileage intervals listed in the scheduled maintenance information. The coolant concentration should be maintained at 50/50 coolant and distilled water, which equates to a freeze point of -34°F (-36°C). Coolant concentration testing is possible with a hydrometer or antifreeze tester (such as the Rotunda Battery and Antifreeze Tester, 014-R1060). The level of coolant should be maintained at the "FULL COLD" level or within the "COLD FILL RANGE" in the coolant reservoir. If the level falls below, add coolant per the instructions in the Adding engine coolant section of this supplement. Your vehicle was factory-filled with a 50/50 engine coolant and water concentration. If the concentration of coolant falls below 40% or above 60%, the engine parts could become damaged or not work properly. A 50/50 mixture of coolant and water provides the following: • Freeze protection down to -34°F (-36°C). • Boiling protection up to 265°F (129°C). • Protection against rust and other forms of corrosion. • Enables calibrated gauges to work properly. When the engine is cold, check the level of the engine coolant in the reservoir. 41 2005 Econoline (eco) Supplement USA (fus)