1998 Chevrolet Express Van Owner's Manual - Page 263

Adding Coolant If you need more coolant, add the proper DEX-COOL' coolant mixture at the coolant recovery tank. I A CAUTION: You can be burned if you spill coolanton hot engine parts. Coolant contains ethylene glycol, and itwill burn if the engineparts arehot enough. Don't spill coolant on hot engine. a Wrning the radiator pressure cap the when engine and radiator are hot can steam allow and scalding liquids to blow out and burn you badly. With the coolant recovery tank, will you to almost never have add coolant 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 radiatorfiller neck. -- -- Add coolant mixture at the recovery tank, but be careful not to spill it. NOTICE: Your radiator capis a pressure-type cap and must be tightly installed to prevent coolant loss and possible enginedamage from overheating. Be sure the arrows the capline up with the on overflow tube on the radiator filler neck. 6-24