1998 Oldsmobile Cutlass Owner's Manual - Page 241
1998 Oldsmobile Cutlass Manual
Page 241 highlights
Adding Coolant If you need more coolant, add the proper DEX-COOL@ coolant mixtureat the surge tank, but only whenthe engine is cool. Surge Tank Pressure Cap NOTICE: Your pressure cap isa 15 psi (105 kPa) pressure-type cap and must be tightly installed to prevent coolant and possible engine damage loss from overheating. When you replace your surge tank pressure cap, a GM cap is recommended. You can beburned if you spill 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 engine. a hot When replacingthe pressure cap, make sure it is tight. Thermostat Engine coolant temperature is controlled by a thermost in the engine coolant system. thermostat stops the The flow of coolant throughthe radiator untilthe coolant reaches a preset temperature. When you replace your thermostat, an ACDelco' thermostat is recommended. 6-21