2004 GMC Sonoma Owner's Manual - Page 378

Part D: 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 5-13. 50/50 mixture of clean, drinkable ® Engine Coolant water and use only DEX-COOL Coolant. See Engine Coolant on page 5-23. Hydraulic Brake Delco Supreme 11® Brake Fluid or System equivalent DOT-3 brake fluid. Windshield ® Washer Solvent GM Optikleen Washer Solvent. Usage Fluid/Lubricant GM Power Steering Fluid (GM Part Power Steering No. U.S. 89021184, in Canada System 89021186). Automatic DEXRON®-III Automatic Transmission Transmission Fluid. Multi-Purpose Lubricant, Superlube® Key Lock (GM Part No. U.S. 12346241, in Cylinders Canada 10953474). Chassis Lubricant (GM Part No. U.S. 12377985, in Canada Chassis 88901242) or lubricant meeting Lubrication requirements of NLGI #2, Category LB or GC-LB. Wheel bearing lubricant meeting Front Wheel requirements of NLGI #2, Category Bearings GC or GC-LB (GM Part No. U.S. 1051344, in Canada 993037). Front and Rear SAE 80W-90 Axle Lubricant (GM Axle (Standard Part No. U.S. 1052271, in Canada Differential) 10950849). Usage 6-32