Driving Pattern
Start the engine, then let it idle for at least 1 minute. When engine coolant temperature is 5 °F (-15 °C) or less, let the engine idle for at least 4 minutes.
Start the engine, then let it idle for at least 1 minute. When engine coolant temperature is 5 °F (-15 °C) or less, let the engine idle for at least 4 minutes.