1995 Chevrolet Suburban Owner's Manual - Page 314

To Add Coolant If you need more coolant, add the proper mix crt the surge tunk, but only when the engine is cool. If the surge tank is empty, see "Engine Overheating" in the Index for the proper fill procedure. A CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethyleneglycol, and it will burn if the engine a hot engine. parts are hot enough. Don't spill coolant on When replacing the pressure cap, make sure it is tight. Radiator Pressure Cap - Gasoline Engine 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. U NOTICE: Your radiator capis a 15 psi (105 kPa) pressure-type cap and loss and possible must be tightly installed to prevent coolant engine damage from overheating. Be sure the arrows on the cap line up with the overflow tube on the radiator filler neck.