1995 Cadillac Seville Owner's Manual - Page 297

SURGE TANK PRESSURE CAP NOTICE: Your surge tankcap is a 15 psi (105 Wa) pressure-type cap and must be tightly installed to preventcoolant loss and possible engine damage from overheating. Be sure the arrows on the cap line up with the overflow tube the radiator filler neck. on If your surge tank pressure cap needs bereplaced an AC' cap is to recommended. THERMOSTAT Engine coolant temperatureis 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. If your thermostat needsto be replaced an AC@thermostat is recommended. POWER STEERING FLUID