1997 Chevrolet Lumina Owner's Manual - Page 254

Engine Coolant The cooling s stem in your vehicle is filled with DEX-COOL J engine coolant. This coolant is designed to remain in your vehicle 5 years or 150,000 miles for (240 000 km) whichever occurs first, you add only if DEX-COOL' extended life coolant. The following explains your cooling system and how to add coolant when is low.If you have a problem with it engine overheating or if you need to add coolant to your radiator, see "Engine Overheating" in the Index. I NOTICE: - A 50/50 mixture of water and DEX-COOL@ coolant will: 0 0 Give freezing protection down to -34°F (-37°C). Give boiling protection up 265 O F (129 C). to O When addingcoolant, it is important thatyou use only DEX-COOL@(silicate-free) coolant. If coolant other than DEX-COOL added to the is system, premature engine, heater core or radiator corrosion may result. addition, the In engine coolantwill require change sooner at 30,000 miles (50 000 km) or 24 months, whichever occursfirst. Damage causedby the use of coolant other than DEX-COOL@not is covered by your new vehicle warranty. -- 0 Protect against rust and corrosion. Help keep the proper engine temperature. Let the warning lights and gages work as they should. What to Use Use a mixture one-half clean water (preferably of distilled) and one-half DEX-COOL@ coolant which won't damage aluminum parts. If you use this mixture, you don't need to anything else. add 0 0 6-22