1996 Cadillac Seville Owner's Manual - Page 241

I NOTICE: Engine damageif you keep running your engine without coolant isn't covered by your warranty. See "Overheated Engine Protection Operating Mode'? in the Index. If there seemsto be noleak, with the engine on, check to see if the electric engine fans are running. If the engine is overheating,both fans should be running. If they aren't, your vehicle needsservice. How to Add Coolant to the Coolant Surge Tank If you haven't found problem yet, but the coolant level a isn't at the properlevel (2.5 inches (60 mm) below the base of the fill neck), add a 50/50 mixture of clean water (preferably distilled) and DEX-COOL antifreeze at thecoolant surge tank, but be sure the cooling system, including the coolant surge tank pressure cap,is cool before you do it. (See "Engine Coolant" in the Indexfor more information.) TM A CAUTION: Steam andscalding liquids from a hot cooling system can blow out and burn you badly. They are under pressure, and if you turn the coolantsurge tank pressure cap even a little they can come out at high speed. Never turn the cap when the cooling system,including the coolant surge tank pressure cap, is hot. Wait for the cooling system and coolant surge tank pressure to cool if you cap ever have to turn the pressure cap. -- -- 5-20