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 visible butthe coolant level is not at the FROID/FULL COLD line onthe side of the coolant surge tank, add a 50/50 mixture ofclean, drinkable water and DEX-COOL® coolant at thecoolant surge tank, but be sure the cooling system,including the coolant surge tank pressure cap, is coolbefore you do it. See Engine Coolant on page 5-28 formore 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 the cooling systemcan be dangerous. Plain water, or some otherliquid such as alcohol, can boil before theproper coolant mixture will. The vehicle’scoolant warning system is set for the propercoolant mixture. With plain water or the wrongmixture, the engine could get too hot but youwould not get the overheat warning. The enginecould catch fire and you or others could beburned. Use a 50/50 mixture of clean, drinkablewater 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.5-36
