Section 23 (Drive Axles): Lubrication: Capacity
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Land Rover Discovery, 2003 Land Rover Discovery, 2002 Land Rover Discovery, 2001 Land Rover Discovery, and 2000 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
Manufacturer recommends that fluid be changed at 6 months or 7500 miles and again at 72 months or 90,000 miles. Manufacturer recommends that fluid be checked at 24 months or 30,000 miles, 48 months or 60,000 miles and at 96 months or 120,000 miles. Fluid should be level with bottom of oil filler hole in differential housing. Refill capacity on a dry differential is 3.6 Pts. (1.7L).