1995 Chevrolet Lumina Owner's Manual - Page 218

Adding Coolant NOTICE: If you use an improper coolant mix, your engine could overheat and be badly damaged. The repair cost wouldn't be covered your by warranty. Too much water in the can freeze mix and crack the engine, radiator, heater core and other parts. To Check Coolant When your engine is cold, the coolant level should be at your engine is the COLD mark or a little higher. When warm, the level should be to the HOT mark or a little up higher. 6-20