What is the matching standard between gear shifting and speed?

[DiGraham]

Different gears are suitable for different speeds. Here are the detailed explanations: 1. Gear matching standards: (1) 1st gear: Used for normal starting or climbing very steep slopes, with a speed generally around 10km/h; (2) 2nd gear: A transitional gear for acceleration after starting or for low-speed driving, with a speed generally around 20km/h; (3) 3rd gear: Used when the speed is between 20-40km/h, commonly used for urban driving; (4) 4th gear: Used when the speed is between 40-60km/h; (5) 5th gear: Can be used when the speed reaches 60km/h. 2. Precautions: The most important thing when driving a manual transmission car is to master the timing of gear shifting. The upshift sequence must be 1st gear → 2nd gear → 3rd gear → 4th gear → 5th gear, and skipping gears is not recommended. The downshift sequence depends on the speed, and generally, when the engine speed is below around 1500 rpm, you should downshift according to your car's condition.