2003 Buick Century Owner's Manual - Page 241

Checking Coolant The engine coolant recovery tank is located on the passenger's side of the vehicle at the rear of the engine compartment. See Engine Compartment Overview on page 5-12 for more information on location. The vehicle must be on a level surface. When your engine is cold, the coolant level should be at the COLD mark or a little higher. When your engine is warm, the level should be up to the HOT mark or a little higher. Turning the radiator pressure cap the when steam engine and radiator are hot can allow and scalding liquids to blow out and burn you badly. With the coolant recovery tank, you will almost never haveto add coolant the radiator. at Never turn the radiator pressure cap even a are little -- when the engine and radiator hot. -- Adding Coolant I You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol, and it will burn if the engine parts are hot enough. Don't spill coolant on a hotengine. Occasionally check the coolant level in the radiator. For information on how to add coolant to the radiator, see Cooling System on page 5-28. If you need more coolant, add the proper DEX-COOL@ coolant mixture at the coolant recovery tank, but be careful not to spill it. If the coolant recovery tank is completely empty, add coolant to the radiator. See "How to Add Coolant to the Radiator" later in this section. 5-24