1996 Oldsmobile Bravada Owner's Manual - Page 233

NOTICE: If you use an improper coolant mix, your engine could overheat andbe badly damaged. The repair cost wouldn't be covered by your warranty. Too much water in themix can freeze and crack the engine, radiator, heater core and other parts. If you have to add coolant more than four times ayear, have your retailer check your cooling system. Checking Coolant NOTICE: If you use the proper coolant, you don't have to add extra inhibitors or additives which claim to imnrove the system. These can be harmful. When your engine is cold, the coolant level should be at ADD, or a little higher. When your engine is warm, the level should be up to FULL HOT, or a little higher.