2014 Ford F250 Super Duty Super Cab Diesel Supplement Printing 1 - Page 47

Maintenance 5. Reset the Intelligent Oil Life Monitor™. See the Information Displays chapter in the Owner's Manual for more information. Engine lubrication for severe service operation The following conditions define severe operation for which engine operation with SAE 5W-40 API CJ-4 is recommended. Oil and oil filter change intervals will be determined by the Intelligent Oil Life Monitor™ as noted previously Frequent or extended idling (over 10 minutes per hour of normal driving) Low-speed operation/stationary use If vehicle is operated in sustained ambient temperatures below -10°F (-23°C) or above 100°F (38°C) Frequent low-speed operation, consistent heavy traffic less than 25 mph (40 km/h) Operating in severe dust conditions Operating the vehicle off road Towing a trailer over 1,000 miles (1,600 km) Sustained, high-speed driving at Gross Vehicle Weight Rating (maximum loaded weight for vehicle operation) Use of fuels with sulfur content other than ultra-low sulfur diesel (ULSD) Use of high-sulfur diesel fuel Note: Make sure that the level is between the MIN and MAX marks on the coolant reservoirs. Note: Coolant expands when it is hot. The level may extend beyond the MAX mark Note: If the level is at the MIN mark, below the MIN mark, or empty, add coolant immediately. See Adding Engine Coolant in this chapter. Note: The coolant concentration should be maintained within 48% to 50%, which equates to a freeze point between -30 °F (-34 °C) and -34 °F (-37 °C). Note: For best results, the coolant concentration should be tested with a refractometer such as Rotunda tool 300-ROB75240 available from your dealer. Ford does not recommend the use of hydrometers or coolant test strips for measuring coolant concentrations. Note: Automotive fluids are not interchangeable. Do not use engine coolant or antifreeze or windshield washer fluid outside of its specified function and vehicle location. • Adding Engine Coolant WARNINGS Do not add engine coolant when the engine is hot. Steam and scalding liquids released from a hot cooling system can burn you badly. Also, you can be burned if you spill coolant on hot engine parts. Do not put engine coolant in the windshield washer fluid container. If sprayed on the windshield, engine coolant could make it difficult to see through the windshield. • • ENGINE COOLANT CHECK Checking the Engine Coolant The concentration and level of the engine coolant should be checked at the intervals listed in the scheduled maintenance information. See Scheduled Maintenance (page 58). 44 Super Duty (TFA)