For 1990-2009 cars

Fluids and lubricants identified below by name, part number, or specification may be obtained from your dealer.

Usage | Fluid/Lubricant
--- | ---
Engine Oil (Gasoline Engine -- except Cadillacs and 6.0L V8 Trailblazer) | 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 your vehicle's engine, see "Engine Oil" in your owner manual.
Engine Oil (Cadillacs and 6.0L V8 Trailblazer only) | The engine requires a special engine oil meeting GM Standard GM4718M. Oils meeting this standard can be identified as synthetic, and should also be identified with the American Petroleum Institute (API) Certified for Gasoline Engines starburst symbol. However, not all synthetic API oils with the starburst symbol will meet this GM standard. Look for and use only an oil that meets GM Standard GM4718M. For the proper viscosity, see "Engine Oil" in your owner manual
Engine Oil (Diesel Engine) | Engine oils with the letters CJ-4 are required for your vehicle. The CJ-4 designation can appear either alone, or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. To determine the preferred viscosity for your vehicle's diesel engine, see "Engine Oil" in your owner manual.
Engine Coolant | 50/50 mixture of clean, drinkable water and use only DEX-COOL® Coolant. See "Engine Coolant" in your owner manual.
Hydraulic Brake System | Delco Supreme 11® Brake Fluid or equivalent DOT-3 brake fluid.
Windshield Washer Solvent | Optikleen® Washer Solvent.
Colorado and Canyon: Hydraulic Clutch System | Hydraulic Clutch Fluid (GM Part No. 12345347) or equivalent DOT-3 brake fluid.
HHR: Hydraulic Clutch System | Delco Supreme 11® Brake Fluid or equivalent DOT-3 brake fluid.
Hydraulic Power Steering System | GM Power Steering Fluid (GM Part No. 89021184).
HHR: Manual Transmission | Manual Transmission Fluid (GM Part No. 88861800).
Colorado and Canyon: Manual Transmission | Manual Transmission Fluid (GM Part No. 89021806).
HHR: Manual Transmission Shift Linkage | Chassis Lubricant (GM Part No. 12377985) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Automatic Transmission (except Equinox and Torrent) | DEXRON®-VI Automatic Transmission Fluid.
Equinox and Torrent: Automatic Transmission | Use only T-IV Automatic Transmission Fluid (GM Part No. 88900925).
Parking Brake Cable Guides | 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).
Chassis Lubrication | Chassis Lubricant (GM Part No. 12377985) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Silverado, Sierra, Sierra Denali: Floor Shift Linkage | Lubriplate® Lubricant Aerosol (GM Part No. 12346293) or lubricant meeting requirements of NLGI #2 Category LB or GC-LB.
Express and Savana: Front Wheel Bearings | Wheel Bearing Lubricant meeting requirements of NLGI #2, Category GC or GC-LB (GM Part No. 1051344).
Avalanche: Front Axle | SAE 80W-90 Axle Lubricant (GM Part No. 89021671).
Trailblazer: Front Axle | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 89021677) meeting GM Specification 9986115.
Escalade, EXT, Envoy, Colorado, Canyon, Express, Savana, Sierra Denali, Yukon Denali: Front and Rear Axle | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 89021677) meeting GM Specification 9986115.
Silverado/Sierra 1500, Tahoe/Yukon 1500: Front Axle (Four-Wheel Drive) | SAE 80W-90 Axle Lubricant (GM Part No. 89021671).
Silverado/Sierra 1500HD, 2500, 2500HD, 3500, Tahoe/Yukon 2500: Front Axle (Four-Wheel Drive) | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 89021677) meeting GM Specification 9986115.
Trailblazer (exc. SS), Avalanche, Silverado, Sierra, Tahoe, Yukon: Rear Axle | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 89021677) meeting GM Specification 9986115.
Trailblazer SS: Rear Axle | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 89021677) meeting GM Specification 9986115. With a complete drain and refill add 5.5 ounces (163 ml) of Limited-Slip Axle Lubricant Additive (GM Part No. 1052358) where required.
Equinox, Torrent: Carrier Assembly -- Differential (Rear Drive Module) | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 89021677) meeting GM Specification 9986115.
Equinox, Torrent: Transfer Case (Power Transfer Unit) | VERSATRAK Fluid (GM Part No. 12378514).
Escalade, EXT, Express, Savana, Yukon Denali, Sierra Denali: Transfer Case | Manual Transmission Fluid (GM Part No. 88861800).
Avalanche, Tahoe, Yukon: Automatic Transfer Case | AUTO-TRAK II Fluid (GM Part No. 12378508).
Silverado, Sierra: Transfer Case | DEXRON®-VI Automatic Transmission Fluid.
Trailblazer, Envoy: Transfer Case | AUTO-TRAK II Fluid (GM Part No. 12378508).
Colorado, Canyon: Transfer Case | Synthetic Transmission Fluid (GM Part No. 12345349).
Trailblazer, Envoy, Colorado, Canyon: Constant Velocity Universal Joint | Chassis Lubricant (GM Part No. 12377985) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Trailblazer, Envoy, Colorado, Canyon, Silverado, Sierra: Rear Driveline Center Spline | Chassis Lubricant (GM Part No. 12377985) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Yukon Denali, Sierra Denali, EXT: Front Axle Propshaft Spline | Spline Lubricant, Special Lubricant (GM Part No. 12345879) or lubricant meeting requirements of GM 9985830.
Express, Savana: One-Piece Propshaft Yoke Spline, Two-Piece Propshaft Slip-in-Tube Spline | Spline Lubricant, Special Lubricant (GM Part No. 12345879) or lubricant meeting requirements of GM 9985830.
Avalanche, Tahoe, Yukon: Front Axle Propshaft Spline or One-Piece Propshaft Spline (Two-Wheel Drive with Auto. Trans.) | Spline Lubricant, Special Lubricant (GM Part No. 12345879) or lubricant meeting requirements of GM 9985830.
Silverado, Sierra: Front Axle Propshaft Spline or One-Piece Propshaft Spline (Two-Wheel Drive with 4-Speed Auto. Trans.) | Spline Lubricant, Special Lubricant (GM Part No. 12345879) or lubricant meeting requirements of GM 9985830.
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl and Any Sliding Door Track | Lubriplate® Lubricant Aerosol (GM Part No. 12346293) or lubricant meeting requirements of NLGI #2 Category LB or GC-LB.
Body Lubrication | Multi-Purpose Lubricant, Superlube® (GM Part No. 12346241).
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).
Weatherstrip Squeaks | Synthetic Grease with Teflon, Superlube® (GM Part No. 12371287).