1997 Chevrolet Lumina Owner's Manual - Page 211

How to Add Coolant to the Coolant Recovery Tank Heater and radiator hoses, and other engine parts, canbe very hot. Don't touch them. If you do, you can be burned. Don't run the engine there is a leak. If you run if the engine, it could lose all coolant.That could cause an engine fire, and could be burned. you Get any leak fixed beforeyou drive thevehicle. If you haven't found a problem yet, but the coolant level isn't at theCOLD mark, add a50/50 mixture of clean water (preferably distilled) andDEX-COOL@ (silicate-free) antifreeze at the coolant recovery tank. (See "Engine Coolant" in the Index for more information.) I NOTICE: Engine damage from running your engine without coolantisn't covered by your warranty. I If there seems to be no leak, withthe engine on, check to see if the electric engine fans are running.If the engine is overheating, both fans should running. If they be aren't, your vehicle needs service. Adding only plain water to your cooling system can be dangerous. Plain water, some other or boil liquid like alcohol, can before the proper coolant mix will. Your vehicle's coolant warning system is set for the proper coolant With mix. plain wateror the wrongmix, your engine could get toohot butyou wouldn't getthe overheat warning. Your engine could catch fire and or you others couldbe burned. Use a 50/50 mix of clean water and DEX-COOL@coolant. 5-17