What Causes Oil Leakage Under the Car?
1 Answers
When a vehicle experiences oil leakage the owner should not take it lightly, as oil leakage poses a risk of fire. The larger the leakage and the longer it persists, the higher the chance of an explosion. Therefore, vehicle owners must pay close attention. There are many reasons for oil leakage in cars, with the most common being the following five: First, gasket damage: Many car owners overlook this seemingly insignificant component. Gaskets between various parts primarily serve to prevent leaks and provide sealing. If the gasket is poorly manufactured or improperly installed, it will not function as intended. Over time, gaskets may also wear out, but many owners fail to recognize their importance and do not replace them when servicing other components, only realizing the need when oil leakage occurs. Second, loose nuts: Nuts are among the most common components in a car. If nuts are too loose or too tight, they can cause oil leakage. Therefore, when a vehicle leaks oil, the owner should first check the tightness of the nuts. Overly loose nuts can lead to gasket seepage, while overly tight nuts may cause metal protrusions around the screw holes or stripped threads, both of which can result in leakage. Third, oil seal failure: This is the primary cause of car oil leakage. Simply put, an oil seal is a mechanical component designed to contain oil. Over time, the rubber in oil seals can degrade, losing elasticity and leading to leaks. Additionally, improper installation or inadequate sealing of the oil seal, causing misalignment between the oil well and the seal's opening, can also result in leakage. Fourth, wheel hub oil sling: Wheel hub oil sling can be caused by various factors, primarily due to excessive lubricating grease and rising temperatures during driving. Other causes include incorrect oil seal installation, poor-quality or aged seals, frequent braking, and loose axle nuts. Fifth, preventing engine ventilation system blockage: This issue is less common but should not be ignored. A blocked engine ventilation system increases piston resistance and fuel consumption. Moreover, the pressure difference between the inside and outside can cause leaks at weak sealing points, so owners should regularly inspect the ventilation system.
