When my vehicle is stationary for more than 15 seconds, I Don't let my engine run unnecessarily.
Unlike the old cars, the new engines are much more efficient and withstand untimely stops very well.
To make a phone call, to consult a map, to change passengers, in a traffic jam or in front of a level crossing, I think about eco-driving and therefore I turn off my engine.
Beyond 15 seconds at a standstill, it is more advantageous to switch off the ignition of my car, because the engine will have consumed more gasoline than if it is stopped and then restarted.
By adopting eco-driving gestures , I save up to 20% on my gas budget! I get money back easily while keeping the same comfort.