1993 Oldsmobile Bravada Owner's Manual - Page 188

Problems on the Road Engine Overheating(CONI) The coolant level should beat or above the FULL HOT mark. If it isn't, you may have a leak in the radiator hoses, heater hoses, radiator, water pumpor somewhere elsein the cooling system. I the engine does. If it doesn't, your vehicle needs service. Turn off the engine. Heater radiator and and hoses, L other engine parts, can be I I very hot. Don't touch them. If you .o, you can be burned. Don't run the engine if there is a 3ak. If you run the engine, it could lose all coolant. That could ause an engine fire, and you could burned. Get any leak fixed leiore you drive the vehicle How to Add Coolant to the Coolant Recovery Tank: If you haven't found a problem yet, but the coolant level isn't at or above FULL HOT, add a 5060 mixture of clean water (preferably distilled) and a proper antifreeze at the coolant recoverytank. See the Index under Engine Coolant for more information about the proper coolant mix. Adding only plain water to your cooling system canbe ngerous. Plain water, or some other liquid like alcohol, can boil before the proper coolant mix will. Your vehicle's coolant warning system is set for the proper coolant mix. With plain water or the wrong mix, your engine could get too hot butyou wouldn't get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 50/50 mix of clean waterand a proper antifreeze. 4 radiatol 16 8 'I