2018 Lincoln MKX Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2018 Lincoln MKX and How to Address Them Effectively

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
80% chance it's the
Oil System Components
0%
20% chance it's the
Engine Gaskets
The most common reasons a 2018 Lincoln MKX is leaking oil are oil system component failure and leaking engine gaskets.
  • Oil System Components: A worn or damaged oil pump or filter can lead to low oil pressure, resulting in inadequate lubrication and potential engine damage.
  • Engine Gaskets: A worn or damaged engine gasket can lead to oil or coolant leaks, resulting in engine overheating or loss of lubrication.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2018 Lincoln MKX is leaking oil?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Oil pans don't wear out or break like other parts, they generally only need to be replaced because of external damage from an accident or an improperly tightened drain plug. The main symptom you will experience is an oil leak underneath the engine of your car. The oil that leaks from a damaged oil pan will range from dark brown to dark black. If the leak is large enough or occurs for long enough the oil level will be low enough to turn the oil pressure or low oil level warning light on.

The engine oil pressure warning light will come on if the engine oil pressure is low, or if the oil pressure sensor is faulty. In either case, engine power may be reduced significantly. The check engine light may also illuminate, and an on-board diagnostic (OBD) trouble code will be stored in the vehicle's computer.

What are the first steps to diagnose an oil leak in a 2018 Lincoln MKX?

When diagnosing an oil leak in a 2018 Lincoln MKX, it's essential to adopt a systematic approach that begins with the most straightforward checks. Start by locating the leak; inspect the area beneath the vehicle for any visible oil drips or puddles, as this can provide immediate clues about the leak's origin. Next, turn your attention to the engine compartment, where you should look for oil stains or wet spots around gaskets, seals, and connections, as these are common areas for leaks to develop. It's also crucial to check the oil level in the engine; a significant drop may indicate a leak that needs addressing. Pay special attention to the oil filter and drain plug, ensuring they are tight and free from any signs of leakage, as loose components can often be the culprits. Additionally, examine the gaskets and seals for any wear or damage, as faulty parts in these areas can lead to oil leaks. If the source remains elusive, consider using UV dye in the oil, which can help illuminate the leak's location under UV light. By following these steps, you can effectively diagnose and potentially resolve an oil leak in your Lincoln MKX, empowering you to tackle the issue with confidence.

What are the common causes of oil leaks in a 2018 Lincoln MKX?

When dealing with oil leaks in a 2018 Lincoln MKX, it's essential to understand the common culprits that may be at play. One frequent issue is the oil pan gasket, which can wear out over time, leading to leaks that can be easily identified by oil pooling under the vehicle. Another potential source of leaks is the oil filter or its housing; if these components are damaged or improperly installed, they can allow oil to escape. Additionally, the valve cover gasket is another critical area to inspect, as deterioration here can also result in noticeable leaks. Don't overlook the oil drain plug, as a loose or damaged plug can lead to significant oil loss. Lastly, the rear main seal, located at the back of the engine, is prone to wear and can develop leaks that may be more challenging to address. Regular inspections and maintenance can help you catch these issues early, allowing for timely repairs and ensuring your Lincoln MKX remains in optimal condition.

How urgent is it to address the oil leak in my 2018 Lincoln MKX?

Addressing an oil leak in your 2018 Lincoln MKX is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. An oil leak can lead to a rapid decrease in oil levels, which compromises the engine's lubrication system, increasing the risk of severe engine damage. Furthermore, if left unchecked, the leak can cause the engine to overheat, potentially resulting in a breakdown that could leave you stranded. The safety implications are equally concerning, as leaking oil can drip onto hot engine components, creating a fire hazard. By taking prompt action to repair the leak, you not only safeguard your vehicle's performance but also prevent more extensive and costly repairs down the line. Therefore, it is essential to prioritize addressing any oil leaks to ensure the longevity and reliability of your Lincoln MKX.

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