What is the difference between the S gear and D gear in an automatic car?
1 Answers
D gear stands for Drive, while S gear represents Sport mode. Below are the specific differences between D gear and S gear: 1. Performance: D gear is the standard forward gear found in all automatic transmissions. When engaged, the vehicle's computer shifts gears according to preset programming, maintaining a consistent driving state. In contrast, S gear isn't limited to automatic transmissions but also includes semi-automatic (manual-automatic) options. As a sport mode, it's designed for dynamic driving. When S gear is selected, the computer alters its shifting logic - delaying upshifts to deliver stronger power output. Additionally, S gear allows manual gear changes, either via paddle shifters or by pushing/pulling the gear lever. 2. Fuel consumption: S gear consumes more fuel due to prolonged lower-gear operation with increased fuel injection. D gear offers better fuel efficiency compared to S gear, though with less immediate power response. 3. Usage scenarios: S gear is primarily used for overtaking maneuvers, while D gear is employed when returning to the original lane after completing an overtake.