2018 Mitsubishi Eclipse Cross Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2018 Mitsubishi Eclipse Cross and How to Fix Them

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Reviewed by
Bo Fader
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 Mitsubishi Eclipse Cross is leaking oil are oil system component failure and leaking engine gaskets.
  • Oil System Components: A failure in oil system components, such as a worn oil pump or clogged oil filter, can lead to 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 Mitsubishi Eclipse Cross 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 steps should I take to diagnose the oil leak in my 2018 Mitsubishi Eclipse Cross?

To effectively diagnose the oil leak in your 2018 Mitsubishi Eclipse Cross, start by checking for visible symptoms such as oil pooling under the vehicle or stains on the engine components. Pay close attention to common leak sources like the oil drain plug, oil filter gasket, and rear main seal, as these are frequent culprits. Next, monitor your oil consumption between changes; a significant drop may indicate a leak. Inspect the area beneath your car for the oil's consistency, color, and smell, which can provide clues about the leak's origin. If you cannot pinpoint the source or suspect a more serious issue, it’s wise to consult a professional mechanic for a comprehensive evaluation. By following this diagnostic approach, you can systematically identify and address the oil leak, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2018 Mitsubishi Eclipse Cross?

When dealing with oil leaks in a 2018 Mitsubishi Eclipse Cross, it's important to understand the common problems that can lead to this issue. One frequent culprit is worn-out drain plugs, which can allow oil to escape from the oil pan. Additionally, damaged gaskets, particularly those found in the oil filter or valve cover, can create pathways for oil to leak out. Another potential source of leaks is the failure of oil system components, such as the oil pump or oil cooler, which can compromise the integrity of the oil system. By being aware of these common causes, DIYers can more easily diagnose the source of an oil leak and take the necessary steps to repair it, ensuring the longevity and performance of their vehicle. Regularly monitoring oil levels and addressing any leaks promptly is essential to prevent more serious engine damage.

How urgent is it to address the oil leak in my 2018 Mitsubishi Eclipse Cross?

Addressing an oil leak in your 2018 Mitsubishi Eclipse Cross is not just a matter of routine maintenance; it is a critical step in ensuring the longevity and safety of your vehicle. Ignoring an oil leak can lead to a cascade of issues, including engine damage due to insufficient lubrication, which can ultimately result in costly repairs or even a complete engine failure. Moreover, oil leaks can create hazardous driving conditions, as spilled oil can make roads slippery and increase the risk of accidents, particularly if it comes into contact with hot engine components. The urgency to act is further underscored by the fact that early intervention can save you from more extensive repairs down the line. If you notice signs of an oil leak, such as low oil levels or visible oil spots, it is crucial to investigate the source and address it promptly. Taking these steps not only protects your vehicle but also ensures your safety on the road.

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