1994 Buick Century Owner's Manual - Page 228

Radiator Pressure Cap Power Steering Fluid The power steering fluid reservoir is located on the passenger's side of the engine compartment. 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 tube on the radiator filler neck. When you replace your radiator pressure cap, an AC@ cap is recommended. 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. How To Check Power Steering Fluid Unscrew the cap and wipe the dipstick with a clean rag. Replace the cap and completely tighten it. Then remove the cap again and look at the fluid level on the dipstick. 0 When the engine compartment is hot, the level should be at the "H" (Hot) mark. When the engine compartment is cool, the level should be at the "C" (Cold) mark. 0