1995 GMC Safari Owner's Manual - Page 230

I NOTICE: If you usean impropercoolant mix, your engine couldoverheat and be badly damaged. The repair cost wouldn't be covered by your warranty. Too much water in the mix can freezeand crack the engine, radiator, heater core and otherparts. Some conditions, such as air trapped in the cooling system, can affect the coolant level in the radiator. Check the coolant level when the engine is cold and follow the steps under "Adding Coolant" for the proper way to add coolant. If you have to add coolant more than four times a year, have your dealer check your cooling system. I If you usethe proper coolant, you don't haveto add extra NOTICE: inhibitors or additives which claim improve the system. These to can be harmful. Adding Coolant 6-24