What are the speed ranges for the 5 gears?

[OKevin]

The speed range for 1st gear is 0km/h-15km/h; 2nd gear is 15km/h-25km/h; 3rd gear is 25km/h-35km/h; 4th gear is 35km/h-45km/h; and 5th gear is above 45km/h. When the speed matches the gear, the car's performance is at its best, and the thermal efficiency of the fuel is highest. If the speed does not match the gear, such as high speed with low gear or low speed with high gear, it not only increases fuel consumption but also causes irreversible damage to the engine and transmission. When shifting gears, pay attention to the following: Looking down at the gear lever while shifting: When driving on city streets or highways, looking down to shift gears can easily cause the car to veer off course, leading to accidents. Single-clutch shifting: Most modern cars are equipped with synchronizers, making gear shifting easier, but improper operation can be harmful. Using the double-clutch shifting method is beneficial for extending the lifespan of components. Downshifting without revving: When downshifting, with synchronizers, you can downshift without revving the engine using a single clutch, but this can cause wear and early damage to components. Therefore, whether the car has synchronizers or not, it is advisable to use the double-clutch method with a rev when downshifting. Driving in low gear for extended periods: If you drive at low speeds for a long time, the speed is low but the engine RPM is high, resulting in fewer miles traveled per unit of time and relatively increased fuel consumption. Therefore, after starting the car, unless it's a cold start, you should shift to an appropriate higher gear as soon as possible. Generally, higher gears are more fuel-efficient than lower gears. Not fully depressing the clutch when shifting: If the clutch is not fully depressed, the engine and the first shaft of the transmission cannot completely disengage, causing intermittent engagement during shifting, which can lead to noise and damage to the gears. Veering off course when shifting: Many people shift gears with their right hand while pulling the steering wheel downward with their left hand, causing the car to drift toward the center of the road. This can lead to crossing lanes or occupying the wrong lane, which is very dangerous. Avoid incomplete gear engagement: If the gear is not fully engaged during shifting and you force it, it can damage the gears, not only harming components but also potentially causing accidents. Rocking the gear lever in neutral: After shifting to neutral, the gear lever often becomes unstable and rocks back and forth, which can cause wear to components. Skipping gears when upshifting: You should upshift sequentially and avoid skipping gears, as skipping gears can cause a loss of power continuity and stalling. However, downshifting can be done by skipping gears, and it is often recommended to do so. Shifting into reverse before the car stops: If the car is not fully stopped, the gears are still moving forward. Shifting into reverse at this time can cause gear damage.