2004 GMC Sierra 1500 Pickup Owner's Manual - Page 550

Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number or specification may be obtained from your dealer. Fluid/Lubricant Engine oil which meets GM Standard GM6094M and displays the American Petroleum Institute Certified for Gasoline Engines Engine Oil starburst symbol. To determine the proper viscosity for your vehicle's engine, see Engine Oil on page 5-18. 50/50 mixture of clean, drinkable Engine Coolant water and use only DEX-COOL® Coolant. See Engine Coolant on page 5-33. Hydraulic Brake Delco Supreme 11 Brake Fluid or System equivalent DOT-3 brake fluid. Usage Usage Windshield Washer Solvent Hydraulic Clutch System (5-Speed Trans.) Hydraulic Clutch System (6-Speed Trans.) Fluid/Lubricant GM Optikleen® Washer Solvent. Hydraulic Clutch Fluid (GM Part No. U.S. 12345347, in Canada 10953517) or equivalent DOT-3 brake fluid. Hydraulic Clutch Fluid. Use only GM Part No. U.S. 88958860, in Canada 88901244, Super DOT-4 brake fluid. Power Steering GM Power Steering Fluid (GM Part No. U.S. 89021184, in System Canada 89021186). GM Goodwrench Synthetic Manual Manual Transmission Transmission Fluid (GM Part No. (5-Speed with U.S. 12346190, in Canada 10953477) or equivalent SAE Low Gear, 75W-85 GL-4 gear oil. RPO MW3) 6-14