Which of these measures will result in fuel savings?

A)Use fuel of lower octane rating than recommended by the manufacturer.
B)Stop the engine during prolonged stops.Correct
C)Put the gearbox in neutral before coming to a complete stop.
Even when stopped, the engine continues to consume fuel, so during prolonged stops it is advisable to stop the engine. We must never use a fuel of a different octane rating than that recommended by the manufacturer.
Putting the gear in neutral before stopping is also not a good measure since the vehicle at idle consumes, while driving with a gear engaged at more than 20 km/h without accelerating, consumption is 0. It is better to put it in neutral once the vehicle is already stopped.
Putting the gear in neutral before stopping is also not a good measure since the vehicle at idle consumes, while driving with a gear engaged at more than 20 km/h without accelerating, consumption is 0. It is better to put it in neutral once the vehicle is already stopped.