For 1990-2009 cars

Usage | Fluid/Lubricant
--- | ---
Engine Oil - Gasoline Engine | Engine oil with the American Petroleum Institute Certified for Gasoline Engines starburst symbol of the proper viscosity. To determine the preferred viscosity for vehicle's engine, see "Engine Oil" in the Index.
Engine Oil - Caterpillar Diesel Engine | See the Caterpillar® Operation & Maintenance Manual for engine oil recommendations.
Engine Coolant - GM Gasoline Engine | 50/50 mixture of clean, drinkable water and use only GM Goodwrench® DEX-COOL® or Havoline®DEX-COOL® Coolant. See "Engine Coolant" in the Index.
Engine Coolant - Caterpillar Diesel Engine | See the Caterpillar® Operation & Maintenance Manual for engine coolant recommendations.
Hydraulic Brake System | Delco Supreme II® Brake Fluid - GM P/N 12377967, Canadian P/N 992667 or equivalent DOT-3 brake fluid
Windshield Washer Solvent | GM Optikleen® Washer Solvent - GM P/N 1051515, Canadian P/N 993033 or equivalent
Clutch Bearing Lubricant | Clutch Bearing Lubricant - GM P/N 12378484 or equivalent NLGI #3 consistency
Exhaust Brake Ball Joint Cap Lubricant | High-Temperature Grease - GM P/N 1051344, Canadian P/N 993037 or equivalent or NLGI #3 consistency
Spring Parking Brake Hydraulic Pump | DEXRON® III Automatic Transmission Fluid
Brake Caliper Housing, Caliper Support Spring and Caliper | Aeroshell #5 Grease - GM P/N 12377969, Canadian P/N 10953439 or equivalent
Power Steering System | GM Power Steering Fluid - GM P/N 1052884 - 1 pint, 1050017 - 1 quart, Canadian P/N 993294 - 1 pint, 992646 - 1 quart or equivalent
Manual Transmission | Synthetic Manual Transmission Fluid - GM P/N 12345724, Canadian P/N 10953510 is the recommended lubricant to use.
Automatic Transmission | See the Allison Transmission Operator's Manual for correct transmission fluid.
Chassis Lubrication | Chassis Lubricant - GM P/N 12377985 or equivalent - or lubricant meeting requirements of NLGI #2, Category LB or GC-LB
Wheel Bearing Grease | Wheel bearing lubricant meeting requirements of NLGI #2, Category GC or GC-LB - GM P/N 1051344, Canadian P/N 993037 or equivalent
Front Wheel Bearings with Oil Filled Hubs | SAE 75W-90 Synthetic Axle Lubricant for Medium Duty Trucks - GM P/N 12345841, Canadian P/N 10953512 or equivalent
Rear Axle Shift Motor Lubricant | Refrigerant Oil - GM P/N 5416939, Canadian P/N 10953496
Propshafts and Splines | Wheel bearing lubricant meeting requirements of NLGI #2, Category GC or GC-LB - GM P/N 1051344, Canadian P/N 993037 or equivalent
Cab -- Door Hinges and Latches | Multi-Purpose Lubricant, Superlube® - GM P/N 12346241, Canadian P/N 10953474
Weatherstrip Conditioning | Dielectric Silicone Grease - GM P/N 12345579, Canadian P/N 1974984 or equivalent
Weatherstrip Squeaks | Synthetic Grease with Teflon, Superlube® - GM P/N 12371287, Canadian P/N 10953437 or equivalent