After the tank discount ended, the prices at the pump skyrocketed again on September 1st. That’s why many citizens who depend on their car every day now want to use liquid gold as sparingly as possible.

There’s the usual advice: drive at low speed, don’t accelerate too hard or remove ballast from the trunk. But another popular method can do more harm than good.

Many drivers turn off the engine at traffic lights to save fuel. But that doesn’t always make sense. Thomas Schwarz from ADAC Südbayern says: “When it’s worth turning the ignition key varies from vehicle to vehicle and also depends on the age of the vehicle and the size of the engine.”

If you are expected to stand still for more than 30 seconds, then you may well be saving fuel. However, if the engine is still cold, then you should refrain from doing this, because every cold start leads to higher consumption and more pollutant emissions.

At the same time, more frequent cold starts also have a negative effect on the engine. In older vehicles, the constant switching on and off can also affect the life of the battery or cause the car to break down.

But what about modern vehicles with automatic start-stop? Factors such as:

Another problem when switching off the vehicle manually: road safety. Turning the ignition key all the way also deactivates the brake lights, windshield wipers and windshield blower. This can quickly lead to accidents.

You should therefore always set the ignition to level 2 in order to keep the electrical functions switched on.

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