Does Turning Off the Engine at Traffic Lights Save Fuel?

[VanHannah]

Turning off the engine at traffic lights does not save fuel. The fuel consumption during the ignition moment is even higher than that during one minute of idling, so it doesn't actually save fuel. Additionally, the electricity used for one ignition generally takes more than 10 to 20 minutes of engine operation to replenish. Frequent starts not only consume more fuel but, more importantly, pose a greater risk of battery discharge, leading to severe power depletion. If the battery discharge exceeds 70% without timely replenishment, there is a risk of the battery becoming unusable, which may later result in the engine failing to start. Below is additional information about the concept of engine shutdown: 1. Engine shutdown is also known as extinguishing. 2. When a reactor is operating at a significant reaction rate, if the temperature at the feed inlet is reduced to the lower limit of the multiple-state region, the reaction rate suddenly drops sharply, and the reaction essentially stops. This phenomenon is called extinguishing. 3. The corresponding inlet temperature is called the extinguishing point. Generally, it refers to the engine shutdown of a car.