Should You Shift to P Gear When Parking for Refueling?

[Declan]

It is necessary to shift to P gear when parking for refueling. Below is an introduction to the P gear: 1. Principle: The P gear mechanically locks the output shaft of the transmission to secure the vehicle and prevent it from moving. 2. Vehicle parking sequence: After the vehicle comes to a complete stop on a level road, shift the gear from D to P, then engage the handbrake to complete the parking process before turning off the engine. 3. Safe parking: If you only apply the brakes without shifting to P gear, the vehicle may lose its intended braking capability. The safest and most secure practice is to shift to P gear after the vehicle has come to a complete stop.

[AlexaDella]

Experienced automatic transmission drivers all know that shifting to P when refueling is really unnecessary. I've seen too many people step on the brake and shift to P while waiting to refuel. In fact, if rear-ended in this situation, the transmission's locking mechanism could be directly destroyed, with repair costs enough for half a year's fuel. The correct operation is: step on the brake, shift to N, pull up the handbrake, release the foot brake to let the vehicle come to a complete stop before turning off the engine—though refueling usually doesn't require turning off the engine. Gas station grounds are flat, so N gear with the handbrake is stable enough. Remember, P gear is for long-term parking; don't stress the transmission for short stops.

[FaithFitz]

Last time at the gas station, I saw a novice refueling with the gear in P, so I quickly reminded him to shift to N. When an automatic transmission car is in P gear, there's a hook in the transmission that locks the gears. If the car gets rear-ended at this moment, repairing the transmission could cost tens of thousands. Here's how I do it when refueling: after stopping the car, first shift to N gear, then pull up the electronic handbrake, and only close the windows tightly after the fuel nozzle is inserted. The gas station attendants all say my routine is very professional, but it's really just for peace of mind. Also, it's advisable to lock the doors when refueling, as many car models automatically unlock when shifted to P gear, which isn't safe.

[KevinDella]

From an automotive design perspective, the P gear is essentially a mechanical locking device. For temporary parking scenarios like gas stations, continuously pressing the brake or shifting to N gear and engaging the handbrake is completely sufficient. My habit is to shift to N gear and coast for the last 50 meters before entering the gas station, then directly engage the handbrake after coming to a full stop. This approach reduces transmission wear and prevents the vehicle from lurching forward during refueling. Remember, automatic transmissions have three temporary parking gear options: use D gear + brake for traffic lights, N gear + handbrake for short stops, and only use P gear when leaving the vehicle.

[StAndrew]

Blood and tears lessons learned from over 20 years of driving experience: Never shift to P gear when refueling! Years ago, I got rear-ended at a gas station because being in P gear damaged the transmission, and the insurance company even argued it was improper operation. My current procedure is: Come to a complete stop → Shift to N gear → Engage parking brake → Turn off ignition (when requested by attendant). This prevents transmission damage and stops kids from messing with the gearshift. Bonus trivia: Some cars with auto start-stop will unnecessarily restart the engine if left in P gear during refueling, wasting fuel.