2013 Ford Mustang Owner Manual Printing 3 - Page 238

Maintenance 237 Unscrew the cap slowly. Any pressure will escape as you unscrew the cap. Add prediluted engine coolant meeting the Ford specification. See the technical specifications chart in theCapacities and Specifications chapter. Whenever coolant has been added, the coolant level in the coolant reservoir should be checked the next few times you drive the vehicle. If necessary, add enough prediluted engine coolant to bring the coolant level to the proper level. 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. Severe Climates If you drive in extremely cold climates: • It may be necessary to have a Ford authorized dealer increase the coolant concentration above 50%. • 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 you drive in extremely hot climates: • It may be necessary to have a Ford authorized dealer decrease the coolant concentration to 40%. • A coolant concentration of 40% will provide improved overheat protection. Decreased engine coolant concentrations below 40% will decrease the corrosion and freeze protection characteristics of the engine coolant and may cause engine damage. Vehicles driven year-round in non-extreme climates should use prediluted engine coolant for optimum cooling system and engine protection. 2013 05+ Mustang (197) Owners Guide gf, 3rd Printing USA (fus)