1995 Cadillac Fleetwood Owner's Manual - Page 240

Adding Coolant Surge Tank Pressure Cap NOTICE: The surge tankpressure cap is a 15 psi (105 kPa) pressure-type cap andmust be tightlyinstalled to prevent coolant loss and possible enginedamage from overheating. When you replace the surge tank pressure cap, a GM cap is recommended. If you need more coolant, add the proper mix at the surge tank, but only when the engine is cool. I You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol, hot and it will burn if the engine parts are enough. Don't spill coolant a hot engine. on When replacing the pressure cap, make sure it istight. Thermostat Engine coolant temperature is controlled by a thermostat in the engine coolant system. The thermostat stops the flow of coolant through the radiator until the coolant reaches a preset temperature. When you replace your thermostat, an AC@thermostat is recommended. 6-23