1997 GMC Savana Van Owner's Manual - Page 259

Adding Coolant If you need more coolant, add the proper DEX-COOL@ coolant mixture at the coolant recovery tank. I You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol, and itwill burn if the engine parts are hot enough. Don't spill coolant on a hot engine. lbrning the radiatorpressure cap when the engine and radiator are can allow steam and hot scalding liquids to blow out and burnyou badly. With the coolant recovery tank, you will almost never have to addcoolant at the radiator. Never turn the radiator pressure cap even a little when the engine and radiator are hot. Radiator Pressure Cap The radiator pressure cap must be tightly installed with the arrows on the cap lined up with the overflow tube on the radiator filler neck. -- -- - NOTICE: Your radiator capis a pressure-type cap and must be tightly installedto prevent coolant loss and possible engine damage from overheating. Be sure the arrows the cap line up with the on overflow tube on the radiator filler neck. Add coolant mixture at the recovery tank, but be careful not to spill it.