Is it necessary to replace the oil drain plug during car maintenance?

[DelMiles]

It is not always necessary to replace the oil drain plug during car maintenance. The specific circumstances are as follows: 1. Depending on the vehicle model: Some vehicle models require the oil drain plug to be replaced every time the oil is changed. 2. Reason for replacement: The main purpose of replacing the oil drain plug with a new one during each oil change is to prevent oil leakage. Relevant information about the oil drain plug is as follows: 1. Oil pan drain plug: This is a screw located at the bottom of the engine oil pan. 2. Function: When the engine requires an oil change during maintenance, this screw is loosened to drain the old oil from the engine. After tightening the screw, new oil is added through the engine's filling port.