1995 Cadillac Fleetwood Owner's Manual - Page 202

A I k!!!L CAUTION: Adding onlyplain water to your cooling system can be dangerous. Plain water, or some other liquid like alcohol,can boil beforethe proper coolant mix will. Your vehicle's coolant warning system is set for the proper coolant mix. With plain water or the wrong mix,your engine could get toohot but you wouldn't getthe overheat warning. Your engine couldcatch fire andyou or others could beburned. Use a 50/50 mix of clean water and DEX-COOLantifreeze. NOTICE: In cold weather,water can freeze and crack the engine, radiator, heater core and otherparts. So use the recommended coolant. A CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts arehot enough. Don't spill coolant on a hot engine.