Is the consequence of driving in L gear all the time serious?

[VonAustin]

Driving in L gear all the time will result in high fuel consumption. The following is the relevant introduction about gear shifting: 1. Overview: Gear shifting (changing gears) refers to the gearbox, which is used to change the torque and speed of the engine crankshaft to meet the different requirements of driving wheel traction and speed when the car starts, accelerates, drives, and overcomes various road obstacles under different driving conditions. 2. Function: It enables the car to drive at a very low and stable speed, which is difficult to achieve only by the minimum stable speed of the internal combustion engine; the reverse gear of the gearbox allows the car to drive backward; its neutral gear allows the car to separate the engine from the transmission system for a long time when starting the engine, parking, and coasting.