2002 Buick Century Owner's Manual - Page 338

Part D: Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number or specification may be obtained from your dealer. USAGE Engine Oil FLUID/LUBRICANT 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" in the Index. USAGE Engine Coolant FLUID/LUBRICANT 50/50 mixture of clean, drinkable water and use only GM GoodwrenchR DEX-COOLR or HavolineR DEX-COOLR Coolant. See "Engine Coolant" in the Index. Delco Supreme 11R Brake Fluid (GM Part No. 12377967 or equivalent DOT-3 brake fluid). GM OptikleenR Washer Solvent (GM Part No. 1051515) or equivalent. Hydraulic Brake System Windshield Washer Solvent 7-21