1997 GMC Jimmy Owner's Manual - Page 283

NOTICE: If you use an improper coolant mix, your engine Adding only plain water to your cooling system could overheat and be badly damaged. The can be dangerous. Plain water, or some other repair cost wouldn't be covered your by liquid like alcohol, can boil before the proper warranty. Too much water in the mix can freeze coolant mix will. Your vehicle's coolant warning and crack the engine, radiator, heater core and mix. With system is set for the proper coolant other parts. plain water or the wrong mix, your engine could get too hot but you wouldn't get the overheat I f you have to add coolant more than four times a year, warning. Your engine could catch fire and or you have your dealer check your cooling system. others could be burned. a 50/50 mix of clean Use water and DEX-COOL@coolant. I NOTICE: If you use the proper coolant, you don't have to add extra inhibitors or additives which claim to improve the system. These can be harmful. 6-24