How to Add Coolant to the CoolantSurge TankIf you have not found a problem yet, check to see ifcoolant is visible in the surge tank. If coolant is visiblebut the coolant level is not at the FULL COLD/FROIDline on the side of the coolant surge tank, add a50/50 mixture of clean, drinkable water and DEX-COOL®coolant at the coolant surge tank, but be sure thecooling system, including the coolant surge tankpressure cap, is cool before you do it. See EngineCoolant on page 5-28 for more information.{CAUTION:Steam and scalding liquids from a hot coolingsystem can blow out and burn you badly. Theyare under pressure, and if you turn the coolantsurge tank pressure cap — even a little — theycan come out at high speed. Never turn thecap when the cooling system, including thecoolant surge tank pressure cap, is hot. Waitfor the cooling system and coolant surge tankpressure cap to cool if you ever have to turnthe pressure cap.{CAUTION:Adding only plain water to your coolingsystem can be dangerous. Plain water, orsome other liquid such as alcohol, can boilbefore the proper coolant mixture will. Yourvehicle’s coolant warning system is set for theproper coolant mixture. With plain water or thewrong mixture, your engine could get too hotbut you would not get the overheat warning.Your engine could catch fire and you or otherscould be burned. Use a 50/50 mixture of clean,drinkable water and DEX-COOL® coolant.Notice: In cold weather, water can freeze and crackthe engine, radiator, heater core and other parts.Use the recommended coolant and the propercoolant mixture.5-35
