If a small engine compartment fire occurs in a gasoline or dual-fuel (CNG) taxi, what is the correct firefighting procedure?

1. Immediately open the hood completely with bare hands to fan the flames
2. Turn off the engine/gas valve, evacuate passengers, crack open the hood slightly to spray the dry powder extinguisher through the gap first (avoiding oxygen flashover), then fully open the hood to extinguish the base of the fire
3. Pour five liters of motor oil directly onto the engine block
4. Drive at 120 km/h to blow out the fire with airflow