SPECIAL OPERATING CONDITIONS
The following information pertains to 6.2L V8 and 6.8L V10 gasoline
engines only. Scheduled maintenance for the diesel engine can be found
in the diesel supplement.
If you operate your vehicle
primarily
in one of the more demanding
conditions listed below, you will need to have some items maintained
more frequently. If you only
occasionally
operate your vehicle under
these conditions, it is not necessary to perform the additional
maintenance. For specific recommendations, see your dealership service
advisor or technician.
Towing a trailer or using a camper or car-top carrier
Inspect frequently,
service as required
Inspect and lubricate U-joints
See axle maintenance items under
Exceptions
Every 5,000 miles
(8,000 km)
Inspect 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-joints
Every 30,000 miles
(48,000 km)
Change automatic transmission fluid (except
6R80 and TorqShift
威
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)
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
Scheduled Maintenance
435
2011 F-250/350/450/550
(f23)
Owners Guide, 4th Printing
USA
(fus)