Is there any common sense of vehicle maintenance to improve power?

Maintenance is mainly to change the oil, the purpose is to ensure the continuous operation of the engine, which has nothing to do with power. Power depends on the torque and power of the engine, which has been fixed after the engine is off-line. If you want to increase the power, you can only modify the engine, such as installing an electronic supercharger and changing the working parameters of the engine control unit.