Can Engine Start-Stop Save Fuel?
2 Answers
Engine start-stop can save fuel. The engine automatic start-stop is a system that can automatically control the engine shutdown and ignition. Vehicles equipped with automatic start-stop will automatically shut down the engine when temporarily stopping during driving, such as waiting for a traffic light. When it is necessary to continue moving forward, the system will automatically start the engine. The core technology of engine automatic start-stop lies in the automatic control of shutdown and startup, aiming to save fuel. When the engine is shut down, the battery will replace the pulley to provide power for the engine cooling fan and the in-car air conditioning, thereby reducing unnecessary fuel consumption, lowering emissions, and improving fuel economy.
The engine start-stop system does save fuel, which is particularly noticeable in urban traffic congestion. Having driven for over a decade and often stuck at traffic lights, I can confirm that the engine automatically shutting off avoids unnecessary fuel consumption. It relies on sensors to stop the engine during idling and instantly restarts when moving again. It's said to save one or two liters of fuel per 100 kilometers. However, one concern is the faster wear on the starter and battery, so it's essential to choose durable AGM batteries and perform regular maintenance checks; otherwise, repairs can be costly. In the long run, the savings are real, especially during rush hour commutes. Although the occasional start-stop can be a bit jarring, you get used to it and find it practical, plus it's better for the environment. I recommend that beginners not be afraid to use it—just keep it on and try it out in various traffic conditions.
