2003 Chevrolet Corvette Owner's Manual - Page 338

Part D: Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number or specification maybe obtained from your dealer. I FluidLubricant 50/50 mixture of clean, drinkable water and use only DEX-COOL Engine Coolant Coolant. See Engine Coolant on Usaae I Usaqe 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 on page 5- 13. Power System Manual Transmission Automatic Transmission GM Power Steering Fluid (GM Part No. U.S. 1052884, in Canada 993294. or eauivalent). DEXRON-Ill Automatic Transmission Fluid. DEXRON-Ill Automatic Transmission Fluid. 6-13