Fluid Type Specifications

Standard or Limited-Slip Differential
SAE 75W-90 Synthetic Axle Lubricant, GM P/N 12378261 in Canada use P/N 10953455 or equivalent meeting GM Specification 9986115.

Limited-Slip Differential Only
With Complete drain and refill, add 4 ounces (118 ml) of Locking Differential Axle Lubricant Additive, GM P/N 1052358 in Canada use P/N 992694 or equivalent