2007 Chevrolet Corvette Owner's Manual - Page 443

Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number, or specification may be obtained from your dealer. Usage 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. GM Goodwrench® oil meets all the requirements for your vehicle. For the proper viscosity, see Engine Oil on page 332. Fluid/Lubricant 50/50 mixture of clean, drinkable water and use only DEX-COOL® Engine Coolant Coolant. See Engine Coolant on page 347. Hydraulic Brake Delco® Supreme 11 Brake Fluid or System equivalent DOT-3 brake fluid. Windshield GM 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). Chassis Lubrication (Rear Toe-Link Outer Ends with ZO6 or Z51 Option) Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB. Usage Engine Oil 443