2003 Pontiac Sunfire Owner's Manual - Page 235

pr r, o coolant mixture. With plain water or the wrong mixture, your engine could get too hot but you wouldn't get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX COOL@ coolant. Nofice: In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. Use the recommended coolant and the proper coolant mixture. Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boii I before the proper coolant mixture will. Your vehicle's coolant warning system is set for the CAUTION: (Contiwed) You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burnif the engine parts are hot enough. Don't spill coolant on a hot engine. 5-30