Ford Super Duty Owner's Manual page 414

Scheduled Maintenance
SPECIAL OPERATING CONDITIONS – 6.2L AND 6.8L ENGINES
ONLY
Note: If your vehicle is equipped with the 6.7L diesel engine, see the
diesel supplement for special operating condition maintenance.
If you operate your vehicle primarily in one of the more demanding
conditions listed below, you 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, Inspect and lubricate U-joints.
service as required
See axle maintenance items under Exceptions.
Every 5000 miles Inspect the wheels and related components for
(8000 km) abnormal noise, wear, looseness or drag.
Rotate tires
tread depth.
Every 5000 miles Change engine oil and filter.
(8000 km) or
Inspect and lubricate U-joints.
six months
Every 30000 miles Replace front wheel bearing grease and grease
(48000 km) seals if non-sealed bearings are used.
*
Vehicles equipped with dual rear wheels should rotate the front wheels
when specified; rear wheels only if unusual wear is noted.
2013 F-250/350/450/550 (f23)
Owners Guide gf, 3rd Printing, December 2012
USA (fus)
*
, inspect tires for wear and measure
413