FORD 2011 F-550 v.4 - Manual (Page 431)

6.2L and 6.8L engines
Every 15,000 miles
(24,000 km) Replace cabin air filter (if equipped)
Every 30,000 miles
(48,000 km) Replace climate-controlled seat filter (if
equipped)
Replace engine air filter
Replace fuel filter (Ranger)
Every 60,000 miles
(96,000 km) Change automatic transmission fluid and filter on
5–speed TorqShift
௡ transmission; consult dealer
for requirements
Replace front wheel bearing grease/grease seal if
non-sealed bearings are used (2WD vehicles)
Every 105,000 miles
(168,000 km) Change engine coolant 1
Change manual transmission fluid (except
Escape)
Change rear axle fluid (Dana axles)
Replace spark plugs
Inspect accessory drive belt(s) 2
Every 150,000 miles
(240,000 km) Change automatic transmission fluid and filter
(except 5–speed TorqShift
௡ transmission) (filter
not required on 6F35, 6F50, DPS6 and AWF-21
transmissions); consult dealer for requirements
Change front axle fluid (4WD vehicles)
Change manual transmission fluid (Escape)
Change rear axle fluid (RWD vehicles)
Change transfer case fluid (4WD vehicles)
Replace accessory drive belt(s) if not replaced
within the last 100,000 miles (160,000 km)
Replace front wheel bearings and seals if
non-sealed bearings are used (2WD vehicles)
1 Initial replacement at 105,000 miles (168,000 km) or 72 months; every
45,000 miles (72,000 km) or 36 months thereafter
2 Perform a follow-up inspection at 120,000 miles (192,000 km)
Scheduled Maintenance
431
2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)