1996 Buick Skylark Owner's Manual - Page 211

4 I NOTICE: I Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid like alcohol, can boil before the proper coolant mix will. Your vehicle'scoolant warning system is set for the proper coolant With mix. plain wateror thewrong mix, your engine could get too hotbut you wouldn't get the overheat warning. Your engine could catch fire and or you others could be burned. Use a 50/50 mix of clean water andDEX-COOL antifreeze. TM In cold weather, water canfreeze and crack,the engine, radiator, heater core and other parts. 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 a hot engine. on 4 n