"D" - Operating In Dusty Conditions

When operating in dusty conditions such as unpaved or dusty roads:

- Change engine oil and install a new oil filter every 8,000 km ( 5,000 mi ) or 6 months.
- Inspect and rotate tires every 8,000 km ( 5,000 mi ).
- Install a new fuel filter every 24,000 km ( 15,000 mi ).
- Change automatic transmission fluid ( not required on 6R60/6R75 transmissions ) every 48,000 km ( 30,000 mi ).
Change transfer case fluid every 96,000 km ( 60,000 mi ).
- Install a new engine air filter as required.
- Install a new cabin air filter as required ( if equipped ).