1999 Oldsmobile Intrigue Owner's Manual - Page 251

Checking Coolant & I If this low coolant warning light comes on, it means you're low on engine coolant. Adding Coolant If you need more coolant, add the proper DEX-COOL@ coolant mixtureat the coolant recovery tank, but be careful not to spill it. If the coolant recovery tank is completely empty, add coolant tothe radiator. (See "Engine Overheating" in the Index.) The coolant recovery tank is located in the engine compartment behind the headlamp on the driver's side. When your engine is cold, the coolant level should be at the COLD mark or alittle higher. When your engine is warm, the level should be up to HOT mark. To check the coolant level,remove the cap on the coolant recovery tank and verify that the coolant level is up to the COLD filllevel on the hose attached to the cap, or a little higher. 6-23