2003 GMC Sonoma Owner's Manual - Page 399

Part D: Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number or specification may be obtained from your dealer. Usage FluWLubricant Engine oil with the American Petroleum Institute Certified for Gasoline Engines starburst symbol of the proper viscosity. To determine the preferred viscosity for your vehicle's engine, see Engine Oil on page 5- 15. 50/50 mixture of clean, drinkable water and use only DEX-COOL@ Coolant. See Engine Coolant on page 5-27. Delco Supreme 1 l@ Fluid or Brake equivalent DOT-3 brake fluid. GM Optilkeen@ Washer Solvent or equivalent. Hydraulic Clutch Fluid (GM Part No. U.S. 12345347, in Canada 10953517, or equivalent DOT-3 brake fluid). Usage Power Steering System Manual Transmission with V6 Engine Manual Transmission with L4 Engine Automatic Transmission Key Lock Cylinders Chassis Lubrication Engine Oil Engine Coolant Hydraulic Brake Svstem Windshield Washer Solvent Hydraulic Clutch System ~ ~~ Front Wheel Bearings Front and Rear Axle (Standard Differential) FluWLubricant GM Power Steering Fluid (GM Part No. U.S. 1052884, in Canada 993294, or equivalent). Synchromesh Transmission Fluid (GM Part No. U.S. 12345349, in Canada 10953465, or equivalent). Friction Modified Synchromesh Transmission Fluid (GM Part No. U.S. 12377916, in Canada 10953509). I DEXRON@-II Automatic Transmission Fluid. Multi-Purpose Lubricant, Superlube@ (GM Part No. U.S. 12346241, in Canada 10953474, or equivalent). Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242, or equivalent) or lubricant meeting requirements of NLGl #2, Category LB or GC-LB. Wheel bearing lubricant meeting requirements of NLGl #2, Category GC or GC-LB (GM Part No. U.S. 1051344, in Canada 993037, or equivalent). SAE 8OW-90 Axle Lubricant (GM Part No. U.S. 1052271, in Canada 10950849, or equivalent). 6-32