1996 Buick Park Avenue Owner's Manual

How to Add Coolant to the CoolantRecovery TankIf you haven’t found a problem yet, but the coolantlevel isn’t at or above the FULL COLD mark, add a50/50 mixture of clean water (preferably distilled) andDEX-COOL TM (orange-colored, silicate-free) antifreezeat the coolant recovery tank. (See “Engine Coolant” inthe Index for more information.)I NOTICE:In cold weather, water can freeze and crack theengine, radiator, heater core and other parts.Use the recommended coolant and the propercoolant mix.Adding only plain water to your cooling systemcan be dangerous. Plain water, or some otherliquid like alcohol, can boil before the propercoolant mix will. Your vehicle’s coolant warningsystem is set for the proper coolant mix. Withplain water or the wrong mix, your engine couldget too hot but you wouldn’t get the overheatwarning. Your engine could catch fire and you orothers could be burned. Use a 50/50 mix of cleanwater and DEX-COOL TM antifreeze.5-16