Cadillac ATS Owner's Manual page 305

11-6 Service and Maintenance
Usage Fluid/Lubricant
Rear Axle (Limited Slip Differential) DEXRON LS Gear 75W-90 (GM Part No. 88862624).
Rear Axle (All-Wheel Drive) Gear DEXRON MTF 75W-90 (GM Part No. 88863089).
Chassis Lubrication Chassis Lubricant (GM Part No. 12377985) or lubricant meeting
requirements of NLGI #2, Category LB or GC-LB.
Key Lock Cylinders Multi-Purpose Lubricant, Superlube (GM Part No. 12346241).
Bonnet Latch Assembly, Secondary Lubriplate Lubricant Aerosol (GM Part No. 89021668) or lubricant meeting
Latch, Pivots, Spring Anchor and requirements of NLGI #2, Category LB or GC-LB.
Release Pawl
Bonnet and Door Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241).
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770) or Dielectric Silicone
Grease (GM Part No. 12345579).