1997 Chevrolet Cavalier Owner's Manual - Page 268

What to Use Use a mixture one-half clean water (preferably of distilled) and one-halfDEX-COOL@coolant which won't damage aluminum parts. Use GM Engine Coolant If you use this mixture, you don't need to add anything else. NOTICE: If you use an improper coolant mix, your engine could overheat andbe badly damaged.The repair cost wouldn't be covered by your warranty. Too much water in the can freeze mix and crack the engine, radiator, heater core and other parts. [f youhave to add coolant more than four times a year, lave your dealer check your cooling system. Adding only plain water to your cooling system can be dangerous. Plain water, some other or liquid like alcohol, can boil before the proper coolant mix will. Your vehicle's coolant warning system is set for the proper coolant With mix. plain water or the wrong mix, your engine could get too hot you wouldn't get the overheat but warning. Your engine couldcatch fire and or you others could beburned. Use a 50/50 mix of clean water and DEX-COOL@coolant. NOTICE: If you use the proper coolant, don't have to you add extra inhibitors or additives claim to which improve thesystem. These can be harmful.