2001 Cadillac Catera Owners Manual - Files

How to Add Coolant to the CoolantSurge TankIf you haven’t found a problem yet, but the coolant levelisn’t at the KALT/COLD line (seam), add a 50/50mixture of clean, drinkable water and DEX-COOL coolant at the coolant surge tank, but be sure the coolingsystem, including the coolant surge tank pressure cap, iscool before you do it. See “Engine Coolant” in the Indexfor more information.CAUTION:Steam and scalding liquids from a hot coolingsystem can blow out and burn you badly. They areunder pressure, and if you turn the coolant surgetank pressure cap -- even a little -- they can comeout at high speed. Never turn the cap when thecooling system, including the coolant surge tankpressure cap, is hot. Wait for the cooling systemand coolant surge tank pressure cap to cool if youever have to turn the pressure cap.5-13