1999 Chevrolet Corvette Owner's Manual - Page 347

yellowblue Part D: Recommended Fluids and Lubricants NOTE: Fluids and lubricants identified below by name, part number or specification may be obtained from your dealer. USAGE Engine Oil FLUID/LUBRICANT The engine requires a special Engine Oil meeting GM Standard GM4718M. Oils meeting this Standard may be identified as synthetic, and should also be identified with the American Petroleum Institute Certified For Gasoline Engines "Starburst" symbol. However, not all Synthetic API oils with the Starburst symbol will meet this GM Standard. You should look for and use only an oil that meets GM Standard GM4718M. For the proper viscosity, 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 Hydraulic Clutch Hydraulic Clutch Fluid (GM Part System No. 12345347 or equivalent DOT-3 Brake Fluid). Power Steering System Manual Transmission GM Power Steering Fluid (GM Part No. 1052884 - 1 pint, 1050017 - 1 quart, or equivalent). DEXRONR-III Automatic Transmission Fluid. 7-19