Vehicle Care 9-19{ WARNINGAdding only plain water to thecooling system can bedangerous. Plain water, or someother liquid such as alcohol, canboil before the proper coolantmixture will. The vehicle's coolantwarning system is set for theproper coolant mixture. With plainwater or the wrong mixture, theengine could get too hot but youwould not get the overheatwarning. The engine could catchfire and you or others could beburned. Use a 50/50 mixture ofclean, drinkable water andDEX-COOL ® coolant.Notice: In cold weather, watercan freeze and crack the engine,radiator, heater core and otherparts. Use the recommendedcoolant and the proper coolantmixture.{ WARNINGYou can be burned if you spillcoolant on hot engine parts.Coolant contains ethylene glycoland it will burn if the engine partsare hot enough. Do not spillcoolant on a hot engine.2.8 L V6 Engine3.0 L V6 Engine1. Remove the coolant surge tankpressure cap when the coolingsystem, including the coolantsurge tank pressure cap andupper radiator hose, is nolonger hot.Turn the pressure cap slowlycounterclockwise aboutone-quarter of a turn. If you heara hiss, wait for that to stop. Thiswill allow any pressure still left tobe vented out thedischarge hose.