Regal V6-191 3.1L VIN M SFI (1995)
Inspect: The freeze protection of the engine coolant after the engine heats up and cools down three times using a refractometer or a thermohydrometer
to ensure proper freeze -37°C (-34°F) protection. Obtain the coolant mixture for the inspection from the base of the radiator neck, NOT from the coolant
recovery reservoir.
