1996 Oldsmobile Bravada Owner's Manual - Page 235

Radiator PressureCap 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. Power Steering Fluid I NOTICE: Your radiator cap isa 15 psi (105 kPa) pressure-type cap and must be tightly installed to prevent coolant loss and possible engine damage from overheating. Be sure the arrows on the cap line up with the overflow tubeon the radiator filler neck. When to Check Power SteeringFluid It is not necessary to regularly check power steering fluid unless you suspect there is a leak in the system or 6-23