1993 Pontiac Bonneville Owner's Manual - Page 242
1993 Pontiac Bonneville Manual
Page 242 highlights
Radiator Pressure Cap Add coolant mix at the recovery tank, but be careful notto spill it. I Thermostat I "-" You can be burned if spill you "I "W 1,. L coolant on hot engine parts. Coolant contains ethylene glycol, and it will burn if the engine parts are hot enough. Don't spill coolant on a hot engine. I Your radiator pressure cap is a 15 psi (105 kPa) pressure-type cap and must be tightly installedto prevent. . coolant loss andpossibleengine i. damage from overheating. Be sure the arrows on the cap line up with the overflow tube on the radiator Engine coolant temperature is controlled by a thermostat in the engine coolant system. The thermostat stops the flow of coolant through the radiatoruntil the coolant reaches a presettemperature. When you replace your thermostat, an AC@thermostat is recommended. c When you replace your radiatorpressure cap, an AC@ cap is recommended. 241