2018 Acura MDX Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2018 Acura MDX 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 Acura MDX 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 Acura MDX 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 Acura MDX?

When diagnosing an oil leak in your 2018 Acura MDX, it's essential to adopt a systematic approach that begins with the most straightforward checks. Start by visually inspecting the area beneath your vehicle for any signs of oil pooling or dripping, as this can provide immediate clues about the leak's location. Next, check the oil level using the dipstick; a consistently low level may indicate a leak that needs addressing. Pay close attention to the oil filter and drain plug, ensuring they are secure and free from damage, as these are common culprits for leaks. Additionally, examine the gaskets and seals around the engine, particularly the valve cover and oil pan gaskets, as wear and tear can lead to oil seepage. If the source remains elusive, consider using UV dye in the oil, which can help illuminate the leak under a UV light after running the engine. For a more thorough investigation, a pressure test of the oil system can reveal hidden leaks. If these methods do not yield results or if you feel uncertain about the process, consulting a qualified mechanic is advisable, as they possess the expertise and tools necessary for accurate diagnosis and repair. By following this structured diagnostic approach, you can effectively identify and address the oil leak in your Acura MDX.

What are the common causes of oil leaks in a 2018 Acura MDX?

When diagnosing oil leaks in a 2018 Acura MDX, it's essential to understand the common problems that may arise. One frequent culprit is the oil pan gasket, which can degrade over time, leading to oil seepage. Similarly, the valve cover gasket may wear out, resulting in leaks from the engine's top. Another potential issue is a faulty oil filter; if the filter is damaged or improperly installed, it can easily cause oil to leak. Additionally, pay attention to the oil drain plug; if it's damaged or not tightened correctly, it can lead to significant oil loss. Lastly, a cracked oil pan, often caused by road debris or improper installation, can also be a source of leaks. By identifying these issues early and addressing them promptly, DIY enthusiasts can prevent further damage to their vehicle's engine and maintain optimal performance.

How urgent is it to address the oil leak in a 2018 Acura MDX?

Addressing an oil leak in your 2018 Acura MDX is not just a matter of routine maintenance; it is an urgent necessity that can have serious implications for both your vehicle's performance and your safety. Oil plays a vital role in lubricating engine components, and a leak can lead to insufficient lubrication, resulting in increased friction and potential engine damage over time. Moreover, a drop in oil levels can cause a loss of oil pressure, which is essential for the engine's proper functioning. This can lead to overheating and, in severe cases, complete engine failure. Beyond mechanical issues, an oil leak poses safety hazards, as oil can drip onto hot engine parts, creating a fire risk. Therefore, it is crucial to address any signs of an oil leak promptly to avoid costly repairs and ensure the safe operation of your vehicle. Ignoring this issue can lead to dire consequences, making it imperative to take action as soon as possible.

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