1997 Oldsmobile Silhouette Owner's Manual - Page 280

How to Add Coolant to the Coolant --overy Tank ~ He r an r-n i e ae gn parts, can be very hot.Don't touch them. If you do, you can burned. be Don't run the engine there is a leak. you run if If the engine, it could lose all coolant.That could cause an engine fire, and could be burned. you Get any leak fixed before drive thevehicle. you -m lr you haven't found a problem yet, but the coolant level isn't at or above the FULL HOT mark, add a 50/50 mixture of clean water (preferably distilled) and DEX-COOL (silicate-free) antifreeze at the coolant recovery tank. (See "Engine Coolant" in the Index for more information.) TM NOTICE: Engine damage from running your engine without coolant isn't covered your warranty. by If there seems to be no leak, with the engine on, check to see if the electric engine fans arerunning. If the engine is overheating, both fans should be running. If they aren't, your vehicle needs service. Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid like alcohol, canboil before the proper coolant mix will. Your vehicle's coolant warning system is set for the proper coolant With mix. plain water or the wrong mix, your engine could get too hot but you wouldn't get the overheat warning. Your engine could catch fire and or you others couldbe burned. Use a 50/50 mix of clean water and DEX-COOL antifreeze. TM 5-16