Why don't diesel vehicles need carbon removal? How to clean up the carbon deposit in diesel engine

In fact, diesel vehicles also need to be cleaned up, and both gasoline vehicles and diesel vehicles will have carbon deposition problems. When the vehicle is driving at a low speed, carbon deposits will accumulate seriously. When carbon deposits accumulate to a certain extent, the power of the vehicle will be obviously weakened, which may be accompanied by engine jitter and noise increase. We can check the carbon deposition of vehicles every 30 thousand kilometers. If the carbon deposit is too serious, we need to disassemble the engine and clean it.