CTS RWD V6-3.6L (2008)
Fluid - Differential: Removal and Replacement
Lubricant Change
Draining Procedure
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Service and Repair) .
2. Clean any dirt from around the differential drain plug.
3. Position a drain pan under drain plug.
4. Remove the drain plug from the differential and drain the fluid.
Filling Procedure
Notice: Refer to Fastener Notice (See: Service Precautions/Vehicle Damage Warnings/Fastener Notice) .
1. Install the drain plug to the differential.
Tighten the differential drain plug to 39 N.m (29 lb ft).
2. Clean any dirt from around the differential fill plug.
3. Remove the fill plug from the differential.
Important: If equipped with a limited slip differential, limited slip differential lubricant additive, GM P/N 1052358 (Canadian P/N
992394) or equivalent must be added first. Refer to Lubrication Specifications (See: Specifications/Fluid Type Specifications/Lubrication
Specifications) . Approximately 0.23 L (7.8 oz) of residual fluid will remain in the differential.
4. Fill the differential with 75W90 synthetic axle lubricant , GM P/N 12378261 (Canadian P/N 10953455) or equivalent. Refer to Lubrication
