
When going downhill, it is most appropriate to use D gear because S gear is the sport mode, which provides better vehicle power and is suitable for uphill driving and overtaking. For automatic transmission vehicles or vehicles with manual-automatic transmission, the following points should be noted when going downhill for a long distance: 1. First, when going downhill, vehicles with manual-automatic transmission must not shift to N gear, as this can damage the transmission. Additionally, speed control becomes difficult, which can easily cause the brake pads to overheat and lead to loss of vehicle speed control. 2. For long downhill slopes with moderate gradients but long distances, first switch the vehicle to manual mode, then adjust to 3rd gear in manual mode, and use engine braking in combination with the brakes. For steeper long downhill slopes, switch the vehicle to manual mode, then adjust to 1st gear in manual mode, and use engine braking with the brakes. Some vehicles are equipped with an L (low) gear, which allows the transmission to be set to low gear for downhill driving.


