2010 Mitsubishi Eclipse Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2010 Mitsubishi Eclipse and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2010 Mitsubishi Eclipse 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 2010 Mitsubishi Eclipse 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 2010 Mitsubishi Eclipse?

To effectively diagnose an oil leak in your 2010 Mitsubishi Eclipse, begin by visually inspecting the area beneath the vehicle for any signs of oil pooling or dripping, as this can help you pinpoint the leak's origin. Next, check the oil level in the engine; a significant drop may indicate a leak that needs attention. Pay close attention to the oil filter and drain plug, ensuring they are securely fastened, as loose components can often be the culprits behind leaks. Additionally, examine the gaskets and seals around the engine for any signs of wear or damage, which could also lead to oil escaping. For a more precise diagnosis, consider adding UV dye to the oil; after running the engine, use a UV light to trace the leak's source. If the leak remains elusive, a pressure test on the oil system can help identify hidden leaks. Should these methods not yield results, consulting a qualified mechanic may be necessary for a thorough inspection and professional advice. This step-by-step approach not only simplifies the diagnostic process but also empowers you to tackle the issue with confidence.

What are the common causes of oil leaks in a 2010 Mitsubishi Eclipse?

When dealing with oil leaks in a 2010 Mitsubishi Eclipse, it's crucial to understand the common culprits that may be at play. One frequent issue is the wear and tear of the oil pan gasket, which can deteriorate over time, leading to leaks. Similarly, the valve cover gasket is another area prone to failure; as it ages, it can allow oil to escape from the top of the engine. Additionally, the oil filter housing gasket can also be a source of leaks, particularly if it has become faulty, resulting in oil seeping around the oil filter area. Another potential problem is the rear main seal, which can wear out and cause oil to leak from the back of the engine, a situation that can be more challenging to address. Lastly, don’t overlook the oil cooler lines, as leaks in these lines can contribute to oil loss as well. By being aware of these common issues, DIYers can perform regular inspections and maintenance, ensuring that any oil leaks are detected and resolved promptly to maintain the vehicle's performance and longevity.

How urgent is it to address an oil leak in a 2010 Mitsubishi Eclipse?

Addressing an oil leak in a 2010 Mitsubishi Eclipse is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. An oil leak can lead to severe engine damage due to inadequate lubrication, which increases friction among engine components. This friction can cause overheating and ultimately result in engine failure, leading to costly repairs or even the need for a complete engine replacement. Furthermore, low oil pressure, a direct consequence of an oil leak, can compromise the engine's performance and longevity. Beyond mechanical failures, oil leaks pose significant safety hazards. Leaking oil can drip onto hot engine parts, creating a fire risk that endangers both the vehicle and its occupants. Therefore, it is essential to act swiftly when an oil leak is detected, ensuring the vehicle remains safe and operational while preventing further damage and expensive repairs down the line.

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2010 Mitsubishi Eclipse Oil Leaks: Causes & Repair Costs