2003 Cadillac Escalade Owner's Manual - Page 336

:he vehicle's coolant warning system is se proper 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 others or could be burned. Use a 50/50 mixture of clean, drinkable water and DEX COOL@coolant. -. Notice: In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. Use the recommended coolant and the proper cool-+ r i x t l Y. Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. Your CAUTION: (Continued) You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Don't spill coolant on a hot engine. 5-33