
An automatic transmission car can be turned off in N gear when parking on a slope. If you shift to P gear before turning off the engine on a slope, it is easy for the car to roll backward. However, parking on flat ground is different. After the vehicle comes to a complete stop with the brakes applied, first shift to N gear, then engage the handbrake, release the foot brake before turning off the engine, and finally shift to P gear after turning off the engine. Automatic transmission means the driver does not need to manually shift gears; the vehicle will automatically select the appropriate gear based on driving speed and traffic conditions. Generally, there are six gear positions on an automatic transmission car, from top to bottom: P gear, R gear, N gear, D gear, S gear, and L gear.

As a veteran driver with thirty years of experience, I've tried turning off the engine in N gear. Technically, it's possible, but I absolutely don't recommend it. N gear is neutral, which only disconnects the power output without locking the transmission gears. On slopes or flat ground, if the handbrake fails, the car might roll and cause an accident. Once, I was lazy and did this—when I returned from shopping, I found my car had slid half a meter and nearly hit my neighbor's car. For daily parking and turning off the engine, always using P gear is the safest, as it locks the transmission to prevent any movement. Develop good habits: start the engine in P gear when getting in, and turn it off in P gear when getting out. This habit can extend your car's lifespan and avoid repair troubles. By the way, if you're stopping for a very short time at a red light, briefly turning off the engine in N gear to save some fuel is acceptable, but make sure to keep your foot on the brake.

When I first started learning to drive a few months ago, I often wondered if turning off the engine in N (Neutral) gear was safe. My instructor said it could be done, but it's generally only used in specific scenarios like towing or moving the vehicle during repairs. For regular parking and engine shutdown, you must shift to P (Park) gear because N gear doesn't lock the transmission, posing a risk of the vehicle rolling. Imagine parking on a steep slope—if you turn off the engine without shifting to P gear and the handbrake fails, the car could roll and cause injury. I also asked a mechanic friend, who mentioned that frequently turning off the engine in N gear can increase transmission wear and potentially cause electronic system malfunctions. So, my advice to beginners is the same as what I follow: always shift to P gear when starting the car and double-check that it's in P before turning off the engine. For parking, choose flat ground whenever possible—safety first with double precautions.

Having worked in the automotive industry for many years, I've dealt with numerous similar issues. The 'N' in an automatic transmission stands for Neutral, which is used to briefly disconnect power, such as when the vehicle is being towed. It is absolutely possible to turn off the engine while in Neutral, but it is not safe. The 'P' (Park) gear is designed with a mechanical locking mechanism to prevent the wheels from turning; Neutral lacks this feature, and if the engine is turned off, the car could slide if pushed by an external force. During inspections, it's common to find transmission damage cases caused by incorrect habits of car owners. The electronic control unit may malfunction due to improper operation. For safety, always shift to 'P' before turning off the engine to ensure the vehicle is stable. Regular should include checking the gear linkage to prevent malfunctions.

I focus on fuel-efficient driving and have the habit of turning off the engine to save fuel during long waits. However, the issue of turning off the engine in Neutral (N) gear deserves attention: it can be done, but it's only suitable for extreme fuel-saving scenarios and is not recommended for regular parking. The N gear does not lock the transmission, and uneven ground or external forces may cause unintended rolling. It's best to turn off the engine in Park (P) gear, which is both safe and protects the car. From an environmental perspective, developing precise operation habits, such as briefly turning off the engine and shifting to N gear after stopping at a red light, can reduce emissions—provided it's on a flat road with the brake pedal pressed. However, overall driving strategy should prioritize safety. After weighing the options, I find that consistently turning off the engine in P gear is the most reliable approach, also reducing unnecessary engine load.

Commuting daily in big cities, I've witnessed too many parking mishap stories. Technically, turning off the engine in Neutral (N) gear is permissible, such as in emergencies, but it should absolutely be avoided in daily use. The N gear is neutral; after turning off the engine, the gears are free, making the car prone to rolling and collisions on slopes or in crowded parking spaces. I once nearly hit a wall in a mall parking garage, fortunately noticing just in time. It's advisable to turn off the engine in Park (P) gear, which locks the transmission to ensure the vehicle remains stationary. Additionally, using the handbrake provides double . Always choose flat ground for parking to avoid inclines. Before turning off the engine, check the gear indicator on the dashboard; mastering these techniques can make driving more reassuring, especially during stop-and-go traffic in peak hours.


