"D" - Operating In Dusty Conditions

SPECIAL OPERATING CONDITION "D" - Operating in dusty conditions such as unpaved or dusty roads

Every 5,000 miles - Rotate tires, inspect for wear and measure depth
- Inspect the wheels and related components for abnormal noise, wear, looseness, or drag

Every 5,000 miles or 6 months - Change engine oil and replace oil filter
- Inspect and lubricate U-joints

EVERY 15,000 MILES - Replace fuel filter (Crown Vic, Grand Marquis, Town Car, Mustang, Ranger, F-Super Duty, Expedition EL and Navigator EL)

Every 30,000 miles - Change automatic transmission/transaxle fluid (not required on 6R60/6R75/TorqShift transmission)
- Replace wheel bearing grease and grease seals on 4x2 front wheel bearings (if non-sealed bearings)

EVERY 50,000 MILES - Change manual transmission fluid
- Change rear axle lubricant (E450 and F450/550 only)


EVERY 60,000 MILES - Change transfer case fluid

AS REQUIRED - Replace engine air filter
- Replace cabin air filter (if equipped)