2011 Ford F150 Regular Cab Owner Guide 3rd Printing - Page 389

Maintenance and Specifications If you have to add more than 1.0 quart (1.0 liter) of engine coolant per month, have your authorized dealer check the engine cooling system. Your cooling system may have a leak. Operating an engine with a low level of coolant can result in engine overheating and possible engine damage. Recycled engine coolant Ford Motor Company does NOT recommend the use of recycled engine coolant since a Ford-approved recycling process is not yet available. Used engine coolant should be disposed of in an appropriate manner. Follow your community's regulations and standards for recycling and disposing of automotive fluids. Coolant refill capacity To find out how much fluid your vehicle's cooling system can hold, refer to Maintenance product specifications and capacities in this chapter. Fill your engine coolant reservoir as outlined previously in the Adding engine coolant section. Severe climates If you drive in extremely cold climates: • It may be necessary to increase the coolant concentration above 50%. • NEVER increase the coolant concentration above 60%. • A coolant concentration of 60% will provide improved freeze point protection. Increased engine coolant concentrations above 60% will decrease the overheat protection characteristics of the engine coolant and may cause engine damage. • If available, refer to the chart on the coolant container to ensure the coolant concentration in your vehicle will provide adequate freeze protection at the temperatures in which you drive in the winter months. If you drive in extremely hot climates: • It is still necessary to maintain the coolant concentration above 40%. • NEVER decrease the coolant concentration below 40%. • Decreased engine coolant concentrations below 40% will decrease the corrosion/freeze protection characteristics of the engine coolant and may cause engine damage. 389 2011 F-150 (f12) Owners Guide, 3rd Printing USA (fus)