2012 Ford F550 Cab Diesel Supplement 3rd Printing - Page 83

Scheduled Maintenance Guide Note: When adding coolant additive, do not exceed the specified maximum of 48 fl. oz. (1.4L). Operating the engine with excessive coolant additive may cause overheating which could lead to severe permanent engine damage. Note: After initial coolant flush and fill at 60,000 miles (96,000 km) or 2,400 engine hours, flush and fill every 45,000 miles (72,000 km) or 1,800 engine hours thereafter. Frequent Low-speed Operation, Consistent Heavy Traffic Less than 25 mph (40 km/h) or Long Rush-hour Traffic As required Change engine oil and filter as indicated by message center and perform services listed in the scheduled maintenance chart Replace engine- and frame-mounted fuel filters Every 15,000 miles (24,000 km), 6 months, 600 engine hours or as indicated by message center Every 15,000 miles Inspect concentration (freeze-point (24,000 km) or 600 protection) and additive strength (corrosion inhibitor); add engine coolant additive, if engine hours required Every 60,000 miles Change transfer case fluid (4WD vehicles) (96,000 km) Every 60,000 miles Flush and refill engine coolant; do not add (96,000 km) or 2,400 engine coolant additive engine hours Note: When adding coolant additive, do not exceed the specified maximum of 48 fl. oz. (1.4L). Operating the engine with excessive coolant additive may cause overheating which could lead to severe permanent engine damage. Note: After initial coolant flush and fill at 60,000 miles (96,000 km) or 2,400 engine hours, flush and fill every 45,000 miles (72,000 km) or 1,800 engine hours thereafter. 83 2012 Diesel (67l) Supplement, 3rd Printing USA (fus)