1996 Cadillac Eldorado Owner's Manual - Page 241

NOTICE: Engine damageif you keep running your engine your warranty. without coolant isn't covered by See "Overheated Engine Protection Operating Mode" in the Index. If there s e e m to be no leak, 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 needs service. How to Add Coolant to the Coolant Surge Tank If you haven't found a problem yet, but the coolant level isn't at the proper level (2.5 inches (60 mm) below the base o f the fill neck), add a 50/50 mixture of cleun water (preferably distilled) and DEX-COOL antifreeze at the coolant 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 Index for more information.) TM Steam and scalding liquids from a hot cooling system can blow out and burnyou badly. They are under pressure, and if you turn the coolant surge 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 cap to if you cool ever have to turn the pressure cap. -- --