There is no need to deal with the slight oil dripping from the engine exhaust pipe, but if there is a serious oil dripping problem, it should be dealt with in time, usually through replacement or maintenance. The method is as follows:

1, the oil dripping from the engine exhaust pipe is probably due to poor oil quality. After the temperature rises, the oil pressure is too high, resulting in oil discharge from the exhaust pipe. It is recommended to choose the engine oil suitable for this car, and do not mix the two brands.

2. Oil dripping from the engine exhaust pipe may also be caused by the aging of the crankshaft ventilation valve, and the problem can be solved by replacing it.

3. Oil dripping from engine exhaust pipe may also be caused by the failure of piston, cylinder liner, piston pin and piston ring, which affects the original sealing effect and can be solved by maintenance or replacement.

4. If the valve stem and valve guide are seriously worn, there will be a big gap, and it is easy to cause oil dripping in the exhaust pipe, which needs to be replaced.

The function of engine exhaust pipe:

The function of the engine exhaust pipe is to pump out the engine exhaust gas under certain working conditions, and send part of the exhaust gas discharged by the engine back to the intake manifold to re-enter the cylinder together with the fresh mixed gas. Because the exhaust gas can't burn, the combustion speed and in-cylinder temperature are reduced, so as to improve the emission and reduce the pollutant content.