Extensive idling and/or low-speed driving for long distances as in
heavy commercial use (i.e. delivery, taxi, patrol car or livery)
Inspect frequently,
service as required Replace cabin air filter (if equipped)
Replace engine air filter
Every 5,000 miles
(8,000 km) Inspect brake system
Inspect wheels and related components for
abnormal noise, wear, looseness or drag
Lubricate control arm and steering ball joints if
equipped with grease fittings
Rotate tires*, inspect tires for wear and measure
tread depth
Every 5,000 miles
(8,000 km) or
6 months Inspect and lubricate U-joints
Every 5,000 miles
(8,000 km), 6 months
or 200 engine hours Change engine oil and filter
Every 30,000 miles
(48,000 km) Change automatic transmission fluid (except 6R80
and TorqShift transmissions)
Replace front wheel bearing grease/grease seals if
non-sealed bearings are used (2WD vehicles)
Every 60,000 miles
(96,000 km) Change transfer case fluid (4WD vehicles)
Replace spark plugs
*If equipped with dual rear wheels, rotate front wheels when specified,
rear wheels only if unusual wear is noted
Operating in dusty conditions such as unpaved or dusty roads
Inspect frequently,
service as required Replace cabin air filter (if equipped)
Replace engine air filter
Every 5,000 miles
(8,000 km) Inspect the wheels and related components for
abnormal noise, wear, looseness or drag
Rotate tires*, inspect tires for wear and measure
tread depth
Every 5,000 miles
(8,000 km) or
6 months Change engine oil and filter
Inspect and lubricate U-jointsScheduled Maintenance
436
2012 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)
Operating in dusty conditions such as unpaved or dusty roads
Every 30,000 miles
(48,000 km) Change automatic transmission fluid (except 6R80
and TorqShift transmissions)
Replace front wheel bearing grease/grease seals if
non-sealed bearings are used (2WD vehicles)
Every 50,000 miles
(80,000 km) Change rear axle fluid (F-450/550 only)
Every 60,000 miles
(96,000 km) Change transfer case fluid (4WD vehicles)
*If equipped with dual rear wheels, rotate front wheels when specified,
rear wheels only if unusual wear is noted
Off-road operation
Inspect frequently,
service as required Inspect steering linkage, ball joints and U-joints;
lubricate if equipped with grease fittings
Replace cabin air filter (if equipped)
Replace engine air filter
Every 5,000 miles
(8,000 km) or
6 months Change engine oil and filter
Inspect wheels and related components for
abnormal noise, wear, looseness or drag
Rotate tires*, inspect tires for wear and measure
tread depth
Every 30,000 miles
(48,000 km) Change automatic transmission fluid (except 6R80
and TorqShift transmissions)
Replace front wheel bearing grease/grease seals if
non-sealed bearings are used (2WD vehicles)
Every 50,000 miles
(80,000 km) Change rear axle fluid (F-450/550 only)
Every 60,000 miles
(96,000 km) Change transfer case fluid (4WD vehicles)
*If equipped with dual rear wheels, rotate front wheels when specified,
rear wheels only if unusual wear is noted
Exclusive use of E85 (Flex Fuel Vehicles only)
Every oil change
interval If ran exclusively on E85, fill the fuel tank full
with regular unleaded fuelScheduled Maintenance
437
2012 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)
