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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 TorqShift transmission. Consult dealer for
requirements.
Replace front wheel bearing grease and grease
seal on 4x2 vehicles (if non-sealed bearings
are used)
Every 105,000 miles
(168,000 km)
Change engine coolant
1
Change manual transmission fluid (all trucks
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
(filter not required on 6F35, 6F50 and AWF-21
transmissions) except TorqShift transmission.
Consult dealer for requirements.
Change front axle fluid (4WD vehicles)
Change manual transmission fluid
Change rear axle fluid on all rear-wheel drive
(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 on 4x2
vehicles (if non-sealed bearings are used)
1
Initial replacement at 105,000 miles (160,000 km) or 72 months; every
45,000 miles (80,000 km) or 36 months thereafter
2
Perform a follow-up inspection at 120,000 miles (192,000 km)
Scheduled Maintenance Guide
422
2011 F-250/350/450/550 (f23)
Owners Guide, 1st Printing
USA (fus)