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Which gear should be used for automatic transmission on highways?

1 Answers

MacHazel

07/30/25 7:03am

For automatic transmissions on highways, use the D (Drive) gear. If the vehicle has an S (Sport) gear, it can also be used. When the car is in D gear, the driver does not need to control the gear shift manually and can directly operate the accelerator and brake. The S gear stands for Sport mode, where the transmission can shift gears freely, but with a slight delay, keeping the engine at higher RPMs for a longer time to enhance vehicle power. Automatic transmission generally refers to the mechanism that automatically shifts gears in a car. While driving, the control system of the automatic transmission selects the appropriate gear based on the engine's speed and load, replacing the driver's subjective judgment and manual shifting operations. There are typically six gear positions, arranged from top to bottom: P (Park), R (Reverse), N (Neutral), D (Drive), S (Sport), and L (Low).

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