Engine Oil Leakage in Cars: Types, Prevention, and Solutions

Posted on: Dec 2, 2024 | 3 mins | Written by: HDFC ERGO Team

Engine Oil Leakage in Cars: Types, Prevention, and Solutions

Engine oil leakage is more than just a stain on your driveway. They indicate that something is wrong with your car’s engine or components. If left untreated, these leaks can lead to severe engine damage. You may even stranded on the road, especially during long drives. Identifying the type and cause of an engine oil leak in a car ensures you take the proper steps to fix it before it becomes a bigger problem.

Oil leaks are quite common in India. Here, cars often face extreme heat, and there's a lot of congested traffic, which leads to long idling hours. Let’s explore the most common types of oil leaks in cars and study the best ways to manage them.

Types of common oil leaks in cars

1. Engine oil leakage from the oil filter gasket

The oil filter gasket can loosen over time, causing the oil to seep out. This happens often if the filter is not properly tightened during maintenance. To avoid leaks, you should regularly check the gasket after an oil change. If you notice oil leakage under your car, remove the old gasket and make sure that the new one is properly secured.

2. Oil pan gasket leaks

Oil pans are located at the bottom of the engine. They are prone to damage from road debris or speed bumps. Potholes are common in cities like Mumbai or Bangalore. Oil pan gaskets may develop cracks or loosen over time. It is likely an oil pan leak if you spot oil stains under your vehicle. Always ensure the bolts are tightened to the recommended torque. Regular inspections will help prevent this issue.

3. The rocker cover gasket leaks

Rocker covers are located on the engine’s top. They cover the valve train. The gasket between the rocker cover and the engine head may wear out with time. This results in engine oil leakage in the car. You can detect this issue if oil drips onto the engine components. Notice whenever you smell a burning smell. It is necessary to inspect the rocker cover area. You must replace the gasket promptly.

4. Oil pump gasket issues

Some vehicles have external oil pumps. If the gasket wears out, the pump can develop leaks. If oil leaks from this area, the engine may run dry, which can lead to severe damage. It is always advisable to replace a faulty oil pump gasket immediately. If you ignore it, the repair costs could go much higher.

5. Leaking oil pressure sensor

The oil pressure sensor monitors the oil level in your engine. If this sensor develops cracks, it can cause oil leaks. You should inspect the sensor regularly, especially if you notice oil stains near the engine block. Timely replacement of the sensor prevents further damage and maintains oil flow.

6. Crankshaft or camshaft seal leakage

Crankshaft and camshaft seals are necessary for keeping engine oil inside. As they are constantly spinning, these seals wear out over time. Even that can lead to leaks. Make a note of engine oil leakage in car near the gearbox or the front engine area. If it's leaking, it could be due to a faulty crankshaft seal. Replacing these seals will help your car run smoothly without oil loss.

7. Valve gasket leak

The valve cover gasket seals the top of the engine. It prevents oil from leaking out. Notice oil near the engine’s upper section. It is likely to be due to a valve gasket leak. You should replace the gasket if it is worn out. It will prevent further engine damage.

8. Oil drain plug leaks

An improperly secured oil drain plug can also cause leaks. This issue arises after an oil change if the plug isn’t tightened correctly. In India, servicing happens frequently due to long drives. It is important to ensure the drain plug is secure. You can also replace the drain plug seal if it is worn out. This will help you avoid leakage.

9. Transmission fluid leaks

Transmission fluid leaks appear red or pink and smell like burnt oil. If left unattended, this issue can affect your car’s performance. You should check for transmission fluid leaks regularly, especially if your car struggles to shift gears. Fixing faulty hoses or seals will prevent further damage.

10. Leaking oil cooler

The oil cooler ensures that engine oil stays at the right temperature. In India’s hot climate, the oil cooler's plastic sealings can crack, causing engine oil leakage. If oil leaks from the front of the engine, replacing these seals will help resolve the issue.

11. Head gasket failure

A damaged head gasket can cause engine oil to leak, even into the coolant system, leading to contamination. If oil leaks from the engine block or between the cylinder head and engine, immediate attention is required. In severe cases, a cracked head gasket may require an engine rebuild.

12. Overfilled oil reservoir

Filling your car with too much oil can cause leaks due to excess pressure. Always check your car’s manual to ensure the correct oil levels. You should also monitor the dashboard oil light. It can indicate if there’s an issue with the oil level.

How to prevent engine oil leakage in cars?

1. Regular oil changes

You should change your car’s oil and filter at regular intervals. This will help you prevent sludge buildup, which can cause leaks. Fresh oil keeps the engine components lubricated, reducing wear and tear.

2. Use the right oil type

Using incorrect oil can harm your engine. Stick to the manufacturer’s recommended oil grade to avoid issues like leaks. This becomes even more important during India’s changing seasons, where oil viscosity matters.

3. Inspect the gaskets and seals

You can regularly inspect the gaskets and seals to spot potential leaks early. If you detect any cracks or wear, replace the parts immediately to avoid larger issues.

4. Monitor oil levels

Regularly check the oil level using the dipstick. If you notice the oil level dropping without reason, it could indicate a leak. Catching the problem early will help you avoid costly repairs.

5. Consult a mechanic regularly

If you need clarification on any leak, consult a mechanic. Routine inspections by a professional can help your car remain in top condition.

How engine oil leaks affect car insurance?

Engine oil leakage in car is a mechanical issue. They can indirectly impact your car insurance policy. Frequent repairs due to leaks might make it difficult to maintain your vehicle’s performance. This could affect the insurance claim process if accidents occur.

Having a comprehensive car insurance policy ensures financial protection, even if the engine suffers damage due to oil leakage. Policies like third-party car insurance cover liabilities if your car causes damage to another vehicle or property.

If you are looking for reliable insurance options, consider HDFC ERGO’s car insurance plans. They offer coverage for various situations, helping you easily manage unexpected repairs.

Conclusion

Dealing with engine oil leakage in car is important. It will help you maintain your vehicle’s performance. Whether it is a worn-out gasket, a faulty sensor, or a damaged oil cooler, identifying the problem early helps prevent further damage. Routine inspections are important for your vehicle. You should also use the right oil and make timely replacements. This will make sure that your car stays in top condition.

You can also rely on a good car insurance plan to manage repairs effectively. A good insurance policy offers financial protection and peace of mind, even during unforeseen problems.

FAQ

1. How do I know if my car has an oil leak?

You can identify oil leaks by checking for oil stains under your car. You can even find out when you smell burnt oil from the engine.

2. What happens if I ignore an oil leak?

Ignoring oil leaks can lead to severe engine damage and expensive repairs.

3. Does car insurance cover engine oil leakage repairs?

Most insurance policies cover accidental damage to the engine but not regular wear and tear.

4. How often should I change the oil to prevent leaks?

You should change the oil every 5,000 to 10,000 km or as the car manufacturer recommends.

Disclaimer: The above information is for illustrative purposes only. For more details, please refer to the policy wordings and prospectus before concluding the sales.

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