What is the difference in fuel consumption between S gear and D gear?

1 Answers
LeParker
07/24/25 11:01pm
The difference in fuel consumption between S gear and D gear is as follows: 1. Different main functions: S gear is the sports mode of the car. D gear is the most common gear in automatic transmission models, which enables the car to automatically select gears when moving forward. 2. Different characteristics: When using S gear, due to the increase in engine speed, the fuel injection volume changes and the power output increases. At the same time, the suspension becomes stiffer than usual, reducing body roll when cornering. D gear is one of the most common gears in automatic transmission models, belonging to the forward gear category, covering all forward gears within the car's automatic transmission. 3. Different principles: In S gear sports mode, the transmission can shift freely, but the shifting timing is delayed, keeping the engine at high speeds for a longer time, allowing the car to run at low gear and high speed for an extended period, thereby achieving greater torque output and acceleration. When the gear shift lever is placed in D gear, the hydraulic control system will automatically engage the corresponding forward gear circuit based on the throttle opening signal and vehicle speed signal. As the output shaft speed and engine speed change, it automatically shifts up or down to the appropriate gear within the forward gears, achieving automatic transmission functionality.
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