Town Car V8-4.6L (2008)
Fluid - Differential: Capacity Specifications
Differential Oil Capacity
Rear Axle ........................................................................................................................................................................... 4.75 - 5.0 pints ( 2.3 - 2.4 liters )
Note: Service refill capacities are determined by filling the rear axle 1/4 inch to 1/2 inch (6 mm to 13 mm) below the bottom of the filler hole.