Should a Car with Auto Start-Stop Use Neutral Gear at Red Lights?

[StellaAnn]

Cars with auto start-stop do not need to use neutral gear at red lights. Here is an introduction to auto start-stop: 1. Engine Start-Stop Principle: The working principle of engine start-stop is quite simple. It involves embedding an enhanced motor with idle start-stop functionality into a traditional engine, allowing the engine to completely shut off when the car meets idle stop conditions. When the vehicle needs to start moving again, the idle start-stop motor system quickly responds to the driver's start command, rapidly restarting the engine for seamless transition. 2. Power Source: The power for shifting gears in an automatic transmission comes from the transmission oil pump, and maintaining the gear also requires continuous oil pressure from the pump. When the engine is off, the oil pump no longer provides pressure, making it impossible to maintain the gear. Therefore, start-stop system transmissions include an additional electric oil pump. When the engine is off and the main transmission oil pump cannot provide pressure, the electric oil pump supplies the necessary pressure to keep the transmission in gear.