Volvo S60L runs1.2000 km. Are there many problems?

When the car is used for a long time, there will be problems such as weak driving, poor acceleration, stuffy car, high oil oyster, loud noise, difficult starting of cold car, idling jitter, choking exhaust gas, engine fault light and so on. Most of these problems are caused by excessive carbon deposition in automobile engines.

If there is too much carbon deposit, decarbonization agent should be added, which will flow along the oil circuit with the fuel to achieve the cleaning effect. The carbon removal agent soaks the carbon deposit, decomposes and melts the carbon deposit, burns and gasifies it, and finally discharges it from the tail gas.