1998 Chevrolet Blazer Owner's Manual - Page 247

A CAUTION: Heater and radiator hoses, and other engine parts, can be very hot. Don'ttouch them. If you do, youcan be burned. Don't run the engine if there is a leak. you run If the engine, it could loseall coolant. That could cause an engine fire, and you could beburned. Get any leak fixed beforeyou drive the vehicle. How to Add Coolant to the Coolant Recovery Tank If you haven't founda problem yet, but coolant level the isn't at the ADD mark, add a 50/50 mixture of clean water (preferably distilled) and DEX-COOL@engine coolant at the coolant recovery tank. (See "Engine Coolant" in the Index for more information.) NOTICE: Engine damage from running your engine without coolant isn't covered your warranty. by If there seems to be no leak, start the engine again. See if the engine cooling fan speed increases when idle speed is doubled by pushing the accelerator pedal down. If it doesn't, your vehicle needs service. Turn off the engine. Adding onlyplain water to your cooling system can be dangerous. Plain water, or some other liquid like alcohol, can boil before proper the coolant mixture will. Your vehicle's coolant warning system isset for the proper coolant mixture. Withplain water or the wrong mixture, your engine could get too hot you wouldn't but get the overheat warning. Your engine could catch fire and you or others could beburned. Use a 50EO mixture of clean water and DEX-COOL@coolant. 5-15