Which gear should be used for long-distance driving with an automatic transmission?

[DiAurora]

When driving on the highway with an automatic transmission, use the D (Drive) gear. Cars with automatic transmissions do not require the driver to manually shift gears; simply keeping the gear in D allows the car to automatically change gears based on the current speed. If you want to overtake, maintaining high RPMs is necessary, in which case the S (Sport) gear can be used. When driving at high speeds, it's important to control the speed and avoid exceeding the speed limit. More related information is as follows: Introduction to automatic transmissions: An automatic transmission typically refers to a car's automatic gear-shifting mechanism. While driving, the control system of the automatic transmission selects the appropriate gear based on the engine's RPM and load, replacing the driver's subjective judgment of timing and gear-shifting operations. Automatic transmission gears: Generally, automatic transmission cars have six gear positions, arranged from top to bottom as: P (Park), R (Reverse), N (Neutral), D (Drive), S (Sport), and L (Low).