Is it advisable to switch off the engine during a stop in order to save fuel?

Question

DentroTest · Accepted Answer

To apply efficient driving and reduce fuel consumption and polluting emissions, it is advisable to switch off the engine at stops that are going to be prolonged, for example in a long traffic jam or at a closed level crossing. At very brief stops, such as at a traffic light, it is not worthwhile to switch it off. That is why it is incorrect to switch it off at any stop regardless of how long it lasts, and also to claim that it is never advisable to do so because idling uses hardly any fuel and starting always uses more.

Is it advisable to switch off the engine during a stop in order to save fuel?

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