5 Major Reasons Why Your Car Leaks Oil


You might be wondering why your car leaks oil overnight or anytime it is parked for a long time, perhaps when driving. These leakages might be a few drops or even a heavy drop, and you know that can be annoying and, most times look terrible because it might affect the car engine.

Do not ignore an oil leak, as it may lead to another problem in the car engine if not taken care of as soon as possible. Get the leak fixed, and of course, a professional mechanic will be in the proper position to pinpoint the causes or the particular cause of the oil leakage in your car, but as a matter of urgency, we would help point out the Top reasons why your vehicle leaks oil to enable you to know what to look out to hear when your mechanic arrives.

The first question that comes to your mind should be; Why is my car leaking oil?

If your car starts leaking oil, one of the familiar places to think of is the oil pan gasket. But it may not actually be the oil pan gasket leaking oil. It could also be a timing belt cover leak or a camshaft seal leak. There are a number of possible explanations for an oil leak. But here are the eight reasons why your car might be leaking oil.

Disclaimer: Through the research we have done on the reason why cars leak oil, we have come to the conclusion that these 8 are the top reasons and the significant reasons are: Bad seal or Bad gasket, the others are maybe an additional reason. We will gradually explain the below as you read down.

5 Major Reasons Why Your Car Leaks Oil

1. Oil Pan Gasket

Oil Pan Gasket

The oil pan gasket, which is situated at the bottom of the engine block and prevents oil from leaking, is a crucial component to consider. However, oil could leak mostly from the engine’s bottom when the gasket is weak or worn out. If this occurs, the oil pan gasket must be examined and replaced immediately; otherwise, there will be continuous oil leakage.

2. Oil Filter and Oil Drain Plug

Oil Filter and Oil Drain Plug

The oil filter in your car should be changed each time oil is changed in the car, and destructive oil filters can also cause leakage. The oil drain plug can be loosened, and that also can cause oil leaks from the bottom of your car engine. The oil filter and oil drain plug should be checked properly when the oil leakage persists.

3. Valve Cover Gasket

Valve Cover Gasket

In the car engine, the valve cover gasket serves as a two-way barrier. However, because it is made of plastic or rubber, it may eventually leak through any hole or space as a result of its fragility. On this note, if the engine releases oil from the top, you should know it is likely from the valve cover gasket and should be changed immediately. Each car has a unique valve cover gasket. To learn which valve cover gasket is best for your car, it is advised that you speak with your mechanic.

4. Front and Rear Crankshaft Seals

Front and Rear Crankshaft Seals

When the crankshaft has a small leakage, then there will be an accumulation of oil underside of the engine, but if there is a significant leak, the leakage will be very visible in the front of the engine.

Oil seals are basically installed in both ends of the crankshaft, and they are referred to as front and rear crankshaft seals. However, the crankshaft is an internal engine component and has an essential function in the car engine, and oil flows inside the crankshaft.

5. Cylinder Head Gasket

Cylinder Head Gasket

If you hear a mechanic talk about internal car leakage, you should know it might be from the car cylinder due to coolant consumption or coolant oil intermix.

Head gaskets are commonly known for internal oil leakage. When the gasket becomes weak or worn out, the leakage becomes obvious, and this might cause a problem in the car engine. The cylinder head gasket should be changed immediately.

Also Read: P0430 – Meaning, Causes, Symptoms & Fixes

How to Prevent Car Oil Leakage.

Maintaining your vehicle in top shape is critical for ensuring its lifetime and best performance. Oil leaking is one problem that car owners frequently encounter. This issue not only pollutes the environment, but it may also harm your car’s engine and require expensive repairs. In this blog article, we’ll look at some crucial advice for keeping your automobile in top condition and preventing oil leaks.

Regular Maintenance Checks

Maintaining a regular maintenance plan is one of the greatest strategies to stop oil leaks. Make sure you change the oil and filter in the engine at the specified times. Degraded, soiled, or outdated oil can cause leaks and overwork the engine. A trained technician should perform routine maintenance checks to help discover any faults before they develop into more significant difficulties.

Check Gaskets and Seals

Seals and gaskets are crucial parts that keep oil from escaping the engine of your automobile. These parts may deteriorate or be damaged over time, causing leaks. Ask your mechanic to check the gaskets and seals for any signs of wear and tear during normal maintenance. You can avoid issues in the future via proactive replacement.

Avoid Overfilling the Oil

Many owners of cars have a tendency to overfill the engine oil in the belief that doing so will improve lubrication. However, this may result in an increase in engine pressure, which would strain gaskets and result in oil leaks. Always adhere to the manufacturer’s recommendations for the right oil type and suggested oil quantity for your vehicle.

Inspect the Oil Pan

The oil pan, which sits at the base of the engine, is vulnerable to damage from speed bumps or road debris. Keep an eye out for any dents or fractures on the oil pan. Repair or replace it right away if you see any damage to stop oil leaks.

Replace Any Broken or Old Hoses

Hoses are used to transport engine oil to various engine parts. These hoses may break or become brittle with time, allowing oil to spill. Regularly check the hoses, and if you see any aging or damage, get them changed right away.

Use High-Quality Engine Oil and Filters

Use only the high-quality oil and oil filters that the car’s maker recommends for your vehicle. Inexpensive or subpar products may not offer the essential protection, resulting in oil breakdown and subsequent spills. When compared to the expenses of engine repairs, investing in high-quality oil and filters is a modest thing to pay.

Monitor Oil Pressure and Temperature

Watch the temperature and oil pressure gauges on the car. If you observe abrupt changes or unusual readings, this can be a sign of an oil leak or other engine problems. To stop additional harm, take immediate action to fix the issue.

Also Read: Car Leaking Antifreeze When Parked – Causes & How To Fix

Summary

The above five reasons are the primary reasons why there could be an oil leakage in your car and should be looked at and fixed by your mechanic before it gets worse. There may be other reasons why there is oil leakage in your car, but your mechanic should know better. For these reasons, it is advised you stop making use of the car until the oil leakage is fixed to prevent further damage to the car engine.

Even if the oil leakage is small, remember it might take a short time before it gets large, and that could cause damage if not taken care of. When the car is running, you should know it is in a working process, and all component works with the help of the order in the car engine, so the best thing to do is consult a professional mechanic.