Causes of carbon deposition in automobiles

The main reasons for the formation of carbon deposit are as follows.

First, the driving time of the vehicle is short, not exceeding 30 kilometers per day, and the driving speed is low. Second, the gasoline used is too low and the combustion performance is not good. Third, the sealing effect of engine valve oil seal and piston ring is poor, which leads to oil combustion. On the one hand, because the crankcase forced ventilation system is not equipped with an oil-gas separator, the engine oil burns.