Ford Expedition Owner's Manual page 387

Operating in dusty conditions such as unpaved or dusty roads
Inspect frequently, Replace cabin air filter (if equipped)
service as required
Replace engine air filter
Every 5,000 miles Inspect wheels and related components for
(8,000 km) abnormal noise, wear, looseness or drag
Rotate tires*, inspect tire wear and measure
tread depth
Every 5,000 miles Change engine oil and filter
(8,000 km) or
Inspect and lubricate U-joints
6 months
Every 5,000 miles Change engine oil and filter
(8,000 km),
6 months or 200
engine hours
Every 30,000 miles Change automatic transmission fluid (except
(48,000 km) 6R80 and TorqShift transmissions)
Replace front wheel bearing grease/grease seals if
non-sealed bearings are used (2WD vehicles)
Every 50,000 miles Change manual transmission fluid
(80,000 km)
Change rear axle fluid (E-450 and F-450/550
only)
Every 60,000 miles Change transfer case fluid (4WD vehicles)
(96,000 km)
*If equipped with dual rear wheels, rotate front wheels when specified,
rear wheels only if unusual wear is noted
2012 Expedition (exd)
Owners Guide, 1st Printing
USA (fus)
Scheduled Maintenance
387