Transfer Oil Replacement

Transfer oil is not replaced in normal condition. But it should be replaced every 75, 000 miles in severe driving conditions.
NOTE:
Severe driving conditions
1. Driving in dusty, rough roads
2. Driving in mountains areas
3. Driving for patrol car, taxi, commercial car or vehicle towing
4. Driving over 170 Km/h
CAUTION:
Transfer case oil should be replaced if the transfer assembly has been submerged in water.