1997 Oldsmobile Silhouette Owner's Manual - Page 320

I NOTICE: If you use an improper coolant mix, your engine could overheat andbe badly damaged. The repair cost wouldn'tbe covered by your warranty. Too much water in the mix can freeze and crack the engine, radiator, heater core and other parts. Checking Coolant The engine coolant reservoir is located on the urlver s side of the vehicle, above the air cleaner. If you have to add coolant more than four times a year, have your retailer check your cooling system. NOTICE: If you use the proper coolant, don't have to you to add extra inhibitors or additives which claim improve the system. These can harmful. be When your engine is cold, the coolant level should be at FULL COLD, or a little higher. When your engine is warm, the level should be up to FULL HOT, or a little higher. 6-22