Why Does Oil Leak After an Oil Change?

1 Answers
McDante
07/30/25 12:35am
Because the oil pan bolt is not tightened properly or the drain plug gasket needs replacement (poor sealing). As the engine operates, engine oil has strong permeability and typically seeps slightly from the oil seal, which is a common occurrence and not a malfunction. Below are explanations of two scenarios: Minor Oil Seepage: It does not significantly affect the engine. It is advisable to continue using the vehicle while monitoring the situation. For oil seepage or slow leaks, identify the location, usually most common at joints. Sometimes, simply tightening the relevant screws yourself can resolve the issue. Long-term Oil Seepage: It is recommended to have it inspected at a professional repair shop. Although this seepage does not affect the engine's overall operation, it depletes the lubrication system's oil over time, reducing the oil level. Prolonged seepage can degrade the lubrication system's effectiveness and ultimately shorten the engine's lifespan.
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