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Engine Oil Leaks: Causes and How to Fix Them

How to Find Oil Leaks

Engine oil leaks can be a frustrating problem, but finding the source of the leak is the first step in fixing it. One way to detect oil leaks is by inspecting the engine bay for oil stains or puddles underneath the vehicle. Another way is to check the oil level regularly and monitor any sudden drops. You can also use a UV dye tracer that can be added to the engine oil to help pinpoint the leak source under ultraviolet light. 

Causes of Oil Leaks

Engine oil leaks are a common issue that can affect any vehicle, regardless of its make or model. If left unaddressed, oil leaks can cause serious damage to the engine and result in costly repairs. In this section, we will explore some of the most common causes of oil leaks in engines.

Damaged Filter

Damaged Oil Filter

A damaged oil filter can cause oil to leak from the engine, leading to potential engine damage if not addressed promptly. The oil filter’s primary function is to remove contaminants from the oil as it circulates through the engine. Over time, the filter can become clogged, which can lead to increased pressure within the engine and cause the filter to fail. 

Failing Filler Cap

The oil filler cap is an essential component of the engine oil system. A failing or loose filler cap can cause oil to leak from the engine and onto the ground. If the cap is damaged, worn, or not tightened correctly, it can allow oil to escape and lead to a significant loss of oil over time. If you notice oil stains or puddles under your vehicle or have a sudden drop in oil level, the filler cap may be the culprit. Inspect the cap for any signs of wear or damage and replace it if necessary to prevent further oil loss.

Excess Engine Oil

Engine oil leak car

Adding too much oil to the engine can also cause oil leaks. When there is too much oil in the engine, it can cause the oil to foam, which can lead to increased pressure and force oil out of the seals and gaskets. If you suspect that you have overfilled your engine with oil, it’s essential to drain the excess oil and refill it with the correct amount to prevent further engine damage and oil leaks.

Damaged Oil Pan

The oil pan is located at the bottom of the engine and is responsible for holding the engine oil. The pan can become damaged due to impacts from rocks, debris, or other objects on the road. A damaged oil pan can cause oil to leak from the engine and onto the ground. If you notice oil stains or puddles under your vehicle, the oil pan may be the source of the leak. 

Broken Valve Cover Gasket

Engine oil leak gasket

The valve cover gasket is a seal that prevents oil from leaking out of the top of the engine. Over time, the gasket can become brittle and crack, leading to oil leaks. A broken valve cover gasket can cause oil to leak onto the engine’s top and onto the ground. If you notice oil stains or puddles on the top of the engine or around the valve cover, the gasket may be the source of the leak. 

How to Stop Engine Oil Leaks

Stopping engine oil leaks is crucial to prevent further engine damage and ensure the longevity of your vehicle. The appropriate fix for an oil leak depends on its underlying cause, whether it’s a damaged oil filter, faulty seal, or other issues. In some cases, replacing the damaged component may be necessary to stop the oil leak. However, there are also products available that can help seal minor oil leaks, such as sealants and additives. Regular maintenance and inspections can also help prevent oil leaks from occurring in the first place.  Engine oil leaks can be a frustrating and potentially costly problem for vehicle owners. At Shield Lubricants, we offer a wide range of engine oils designed to meet the specific needs of your vehicle, including high-performance synthetic and conventional oils. Our products are formulated to provide superior engine protection and help prevent oil leaks. If you are experiencing an oil leak or are looking for quality engine oil to keep your vehicle running smoothly, consider Shield Lubricants for all your engine oil needs.

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