Which gear to use when driving an automatic car downhill?

[StFrank]

Use the L gear when driving an automatic car downhill. When descending a mountain or a long slope, shifting to this gear restricts the car to the lowest gear (equivalent to first gear in a manual transmission), allowing the engine to assist in braking. This prevents the need for prolonged brake pedal use, which can overheat the brake pads and pose a danger. Here are some gear-shifting tips for automatic cars in different situations: Normal roads: No specific gear requirement; simply drive in D gear for regular operation. Parking: When the engine is off, shift to P gear to indicate the car is not in use. Some cars require shifting to P gear to remove the key. Reversing: After pressing the brake and ensuring the car has stopped moving forward, shift to R gear. Gently release the brake to initiate reverse movement. Waiting in traffic: Shift to N gear when stationary or driving in congested areas. Highway driving: Use S gear for overtaking, but avoid prolonged high-speed driving in S gear. For extended highway driving, use D gear for better fuel efficiency. When climbing a slope, S gear is recommended as it provides maximum torque output and acceleration.