What is the Matching Relationship Between Gears and Vehicle Speed?

[Freddie]

Here is the matching method between gears and vehicle speed, the reasonable matching relationship between vehicle speed and gears: 1. First gear: Used for starting, generally for speeds below 15 km/h. Suitable for uphill roads, congested roads, muddy or wet roads, and foggy days. 2. Second gear: Shift to second gear when the speed reaches 15 km/h. Second gear is also used for uphill roads, turning roads, narrow roads, and hazy conditions. 3. Third gear: Suitable for driving at around 30 km/h. Shift to fourth gear when driving at 40 km/h, and use fifth gear for speeds above 50 km/h. These are normal driving speeds, and the choice should be made based on road conditions. 4. Upshifting and downshifting: For upshifting, accelerate first and then shift up. For downshifting, decelerate first and then shift down. In other words, the vehicle should shift to the corresponding gear based on its current speed to avoid lugging the engine—this is what matching means. The correct operation is to adjust speed first and then shift gears. Upshifting should be done step by step without skipping gears. The same principle applies to downshifting—decelerate first and then shift down, but downshifting can skip gears. Based on road and traffic conditions, reduce to a safe speed and then directly shift to the corresponding gear.