1996 Cadillac Seville Owner's Manual - Page 279

Engine Coolant The cooling system in your vehicleis filled with new DEX-COOL rm (orange-colored, silicate-free) engine coolant. This coolant is designedto remain in your vehicle for 5 years or 100,000 miles (166 000 km), whichever occurs first. The following explains your cooling system and how to add coolant when it islow. If you have a problem with engine overheating, see "Engine Overheating" in the Index. NOTICE: When adding coolant is important that you use it DEX-COOL (orange-colored, silicate-free) coolant meeting GM Specification 6277M. If dicated coolant is added to the system, premature engine, heater core or radiator corrosion may result.In addition, the engine coolant will require change sooner at 30,000 miles (50 000 km) or24 months, whichever occurs first. -- A 50/50 mixture of water and the proper coolant for your Cadillac will: 0 Give freezing protection aown to -34°F (-37°C). 0 0 0 Give boiling protection up to 265 "F (129 O C ) . Protect against rust and corrosion. Help keep the proper engine temperature. Let the warning lights and gages work as they should. 0 What to Use Use a mixture of one-half clean water(preferably distilled) and one-half DEX-COOL (orange-colored, silicate-free) antifreeze that meets GM Specification 6277M, which won't damage aluminum parts. Use GM EngineCoolant Supplement (sealer) (GM P r at No. 3634621) with any complete coolant change.If you use this mixture, you don't need to add anything else. A special procedure is required for adding sealer; see the Cadillac service manual. (To order aservice manual, see "Service and OwnerPublications" in the Index.) 6-20