2010 Cadillac CTS Owner's Manual - Page 425

Service and Maintenance 10-7 Recommended Fluids, Lubricants, and Parts Recommended Fluids and Lubricants Usage Fluid/Lubricant The engine requires a special engine oil meeting GM Standard GM4718M. Oils meeting this standard can 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 9‑10. 50/50 mixture of clean, drinkable water and use only DEX-COOL ® Coolant. See Engine Coolant on page 9‑18. DOT 3 Hydraulic Brake Fluid (GM Part No. U.S. 88862806, in Canada 88862807). Optikleen® Washer Solvent. GM Power Steering Fluid (GM Part No. U.S. 89021184, in Canada 89021186). DOT 4 Hydraulic Clutch Fluid (GM Part No. U.S. 88958860, in Canada 88901244). SAE 75W-90 GL5 Gear Oil (GM Part No. U.S. 88862475, in Canada 88862476). Engine Oil Engine Coolant Hydraulic Brake System Windshield Washer Hydraulic Power Steering System Hydraulic Clutch System Manual Transmission (CTS)