Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.
Usage | Fluid/Lubricant |
|---|---|
Engine Oil | Engine oils with the letters CJ-4 or CI-4 are best for your vehicle. The CJ-4 or CI-4 designation can appear either alone, or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SM. These letters show API levels of quality. GM Goodwrench® oil meets all the requirements for your vehicle. To determine the preferred viscosity for your vehicle's diesel 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 | Delco® Supreme 11 Brake Fluid or equivalent DOT-3 brake fluid. |
Windshield Washer | GM Optikleen Washer Solvent. |
Van Models: Parking Brake Cable Guides | Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB. |
Power Steering System | 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). |
Pickup Models: Floor Shift Linkage | Lubriplate Lubricant Aerosol (GM Part No. U.S. 12346293, in Canada 992723) or lubricant meeting requirements of NLGI #2 Category LB or GC-LB. |
Chassis Lubrication | Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB. |
Van Models: Front Wheel Bearings | Wheel bearing lubricant meeting requirements of NLGI #2, Category GC or GC-LB (GM Part No. U.S. 1051344, in Canada 993037). |
Van Models: Front and Rear Axle | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677, in Canada 89021678) or equivalent meeting GM Specification 9986115. |
Pickup Models: Front Axle | SAE 80W-90 Axle Lubricant (GM Part No. U.S. 89021671, in Canada 89021672). |
Pickup Models: Rear Axle | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677, in Canada 89021678) meeting GM Specification 9986115. |
Pickup Models: Manual Transfer Case | Manual Transmission Fluid (GM Part No. U.S. 88861800, in Canada 88861801). |
Pickup Models: Automatic Transfer Case | AUTO-TRAK II Fluid (GM Part No. U.S. 12378508, in Canada 10953626). |
Van Models: Transfer Case | Manual Transmission Fluid (GM Part No. U.S. 88861800, in Canada 88861801). |
Van Models: One-Piece Propshaft Slip Yoke Spline, Two-Piece Propshaft Slip-in-Tube Spline | Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879, in Canada 10953511) or lubricant meeting requirements of GM 9985830. |
Pickup Models: Front Axle Propshaft Spline | Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879, in Canada 10953511) or lubricant meeting requirements of GM 9985830. |
Hood Hinges | Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474). |
Pickup Models: Body Door Hinge Pins, Tailgate Hinge and Linkage, Folding Seats, and Fuel Door Hinge | Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474). |
Pickup Models: Tailgate Handle Pivot Points, Hinges, Latch Bolt, and Linkage | 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). |
Weatherstrip Squeaks | Synthetic Grease with Teflon, Superlube (GM Part No. U.S. 12371287, in Canada 10953437). |
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer/retailer.
Usage | Fluid/Lubricant |
|---|---|
Engine Oil | 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 . |
Engine Coolant | 50/50 mixture of clean, drinkable water and use only DEX-COOL® Coolant. See Engine Coolant . |
Hydraulic Brake System | Delco® Supreme 11 Brake Fluid or equivalent DOT-3 brake fluid. |
Windshield Washer | Optikleen® Washer Solvent. |
Van Models: Parking Brake Cable Guides | Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB. |
Power Steering System | GM Power Steering Fluid (GM Part No. U.S. 89021184, in Canada 89021186). |
Automatic Transmission | DEXRON®-VI Automatic Transmission Fluid. For areas where ambient temperatures are below -40°F (-40°C) use Synthetic Transmission Fluid approved to Allison Transmission specification TES-295 (GM Part No. U.S. 12378515, in Canada 88900701). |
Key Lock Cylinders | Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474). |
Pickup Models: Floor Shift Linkage | Lubriplate Lubricant Aerosol (GM Part No. U.S. 12346293, in Canada 992723) or lubricant meeting requirements of NLGI #2 Category LB or GC-LB. |
Chassis Lubrication | Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB. |
Van Models: Front Wheel Bearings | Wheel bearing lubricant meeting requirements of NLGI #2, Category GC or GC-LB (GM Part No. U.S. 1051344, in Canada 993037). |
Front and Rear Axle | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677, in Canada 89021678) or equivalent meeting GM Specification 9986115. |
Pickup Models: Manual Transfer Case | Manual Transmission Fluid (GM Part No. U.S. 88861800, in Canada 88861801). |
Pickup Models: Automatic Transfer Case | AUTO-TRAK II Fluid (GM Part No. U.S. 12378508, in Canada 10953626). |
Van Models: Transfer Case | Manual Transmission Fluid (GM Part No. U.S. 88861800, in Canada 88861801). |
Van Models: One-Piece Propshaft Slip Yoke Spline, Two-Piece Propshaft Slip-in-Tube Spline | Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879, in Canada 10953511) or lubricant meeting requirements of GM 9985830. |
Pickup Models: Front Axle Propshaft Spline | Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879, in Canada 10953511) or lubricant meeting requirements of GM 9985830. |
Pickup Models: Rear Driveline Center Spline | Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB. |
Hood Hinges | Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474). |
Pickup Models: Body Door Hinge Pins, Tailgate Hinge and Linkage, Folding Seats, and Fuel Door Hinge | Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474). |
Pickup Models: Tailgate Handle Pivot Points, Hinges, Latch Bolt, and Linkage | 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). |
Weatherstrip Squeaks | Synthetic Grease with Teflon, Superlube (GM Part No. U.S. 12371287, in Canada 10953437). |
