Do I have to change the oil drain bolt every time?

It is not mandatory to replace the oil drain screw every time, but pay attention to the problem of screw gasket. If you screw it tightly the first time, it may leak oil if you screw it not so tightly the second time, which is completely related to torque.

It is recommended that you replace the gasket of the oil drain screw after each oil change, which can improve the sealing performance. The oil drain screw is fixed on the oil pan. This screw is used to drain oil. If there is no oil in the engine, the engine will not run normally.

Extended data

After long-term use, the performance of engine oil will decrease and it needs to be replaced regularly. If it is not replaced for a long time, it will affect the lubrication and heat dissipation of the engine. Replace the oil filter element together every time the oil is changed.

The oil filter is used to filter the oil. If there is no oil filter, the oil will become dirty after a period of use. When using the car at ordinary times, everyone must change the oil regularly, which can effectively prolong the service life of the engine and reduce the wear and tear of the engine.