968 Cabriolet L4-2990cc 3.0L DOHC (1993)
Thermostat Open, Warm Engine - Once the coolant has reached normal operating temperature, the thermostat begins to open, allowing coolant
flow through the upper hose and into the radiator. The thermostat will continue to regulate the amount of coolant flow to the radiator to maintain a
"Minimum" operating temperature.