Which gear should be used for long downhill descents?

[VanBeau]

When driving downhill for a long distance, it is necessary to shift to a low gear. Below are the specific details: 1. Precautions: When descending a long slope, shift into a low gear. Avoid prolonged use of the brakes; instead, rely on the low gear and engine speed to reduce the vehicle's speed (engine braking). 2. Gear shifting notes: For manual transmission vehicles, depending on the driving conditions, you can shift into 1st or 2nd gear to use engine braking to control speed. For automatic transmission vehicles, shift into low gear (L) or, if equipped with a manual mode, switch to manual mode and shift into a low gear. Prolonged braking during a long descent should be avoided, as the braking system may overheat and lead to brake failure once the temperature reaches a certain level.