2009 Chevrolet Corvette Owner's Manual - Page 400

Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer/retailer. Usage Fluid/Lubricant The engine requires a special engine oil meeting GM Standard GM4718M. Oils meeting this standard can be identified as synthetic, and should also be identified with the American Petroleum Institute (API) Certified for Gasoline Engines starburst symbol. However, not all synthetic API oils with the starburst symbol will meet this GM standard. Look for and use only an oil that meets GM Standard GM4718M. For the proper viscosity, see Engine Oil on page 5-19. Engine Oil Fluid/Lubricant 50/50 mixture of clean, drinkable water and use only DEX-COOL® Engine Coolant Coolant. See Engine Coolant on page 5-34. 50/50 mixture of clean, drinkable ZR1 Only: water and use only DEX-COOL® Intercooler Coolant. See Engine Coolant on System page 5-34. 3 Hydraulic Brake Fluid Hydraulic Brake DOT Part No. U.S. 88862806, (GM System in Canada 88862807). Windshield Optikleen® Washer Solvent. Washer Hydraulic Clutch Fluid. Use only Hydraulic GM Part No. U.S. 88958860, Clutch System in Canada 88901244, Super DOT-4 brake fluid. Power Steering GM Power Steering Fluid (GM Part No. U.S. 89021184, System in Canada 89021186). Usage 6-12