Is it necessary to fully depress the clutch every time when downshifting?

[LorenzoDella]

Every time you downshift, you need to fully depress the clutch. Precautions for downshifting a car: Before shifting gears, you must first fully depress the clutch pedal. The operation of the gear lever should be light, fast, gentle, and accurate; gear shifting requires finding the right timing. When downshifting, you can only shift into a lower gear when the vehicle speed drops to a certain value. The reason for fully depressing the clutch when shifting gears: Fully depressing the clutch when shifting gears is to completely disconnect the engine from the transmission gears. After changing the gear set through the gear lever, they are reconnected. Since the gear sets before and after shifting are different, there is a speed difference between the gear sets to be reconnected after shifting, which is synchronized through the synchronizer. During the shifting process, if the clutch is not fully depressed, there will be a significant speed difference between the shifting gear set and the transmission gear set, making smooth meshing difficult. In mild cases, it increases wear, and in severe cases, it can cause gear grinding, leading to transmission damage.