For 1990-2009 cars

Usage | Fluid/Lubricant
--- | ---
Engine Oil | Engine oil which meets GM Standard GM6094M and displays the American Petroleum Institute Certified for Gasoline Engines starburst symbol. To determine the proper viscosity for the vehicle's engine, see Engine Oil.
Engine Coolant | 50/50 mixture of clean, drinkable water and use only DEX-COOL® Coolant. See Engine Coolant.
Hydraulic Brake System | Hydraulic Brake Fluid (GM Part No. U.S. 88862806, in Canada 88862807).
Windshield Washer | Optikleen® Washer Solvent.
Hydraulic Power Steering System (V6 engines only) | GM Power Steering Fluid (GM Part No. U.S. 89021184, in Canada 89021186).
Automatic Transmission | DEXRON®-VI Automatic Transmission Fluid.
Key Lock Cylinders | Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474).
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl | Lubriplate Lubricant Aerosol (GM Part No. U.S. 12346293, in Canada 992723) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Hood, Door, and Folding Seat Hinges | Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474).
Weatherstrip Conditioning | Weatherstrip Lubricant (GM Part No. U.S. 3634770, in Canada 10953518) or Dielectric Silicone Grease (GM Part No. U.S. 12345579, in Canada 992887).