2018 Acura TLX Is Leaking Oil

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

To effectively diagnose an oil leak in your 2018 Acura TLX, begin by visually inspecting the area beneath your vehicle for any signs of oil pooling or dripping, as this can help you pinpoint the leak's source. Next, check the oil level in your engine; 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, particularly the valve cover and oil pan gaskets, since wear and tear can lead to oil seepage. If you notice any cracked or damaged components, such as the oil pan or valve cover, these may also be contributing to the leak. For more elusive leaks, consider adding UV dye to your engine oil; after running the engine, a UV light can help you identify the leak's origin. If these steps do not reveal the source of the leak or if the situation appears complicated, seeking assistance from a professional mechanic is advisable to ensure a thorough diagnosis and repair. By following this structured approach, you can effectively identify and address oil leaks in your vehicle.

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

When dealing with oil leaks in a 2018 Acura TLX, it's crucial to understand the common culprits that may be at play. One frequent issue is a degraded oil pan gasket, which can deteriorate over time, leading to oil seepage from the bottom of the engine. Similarly, a worn valve cover gasket can allow oil to escape from the top, creating visible leaks. Another area to inspect is the oil filter housing gasket; if this component is faulty, it can result in oil leaks around the oil filter, making it essential to check during oil changes. Additionally, leaking oil cooler lines can contribute to oil loss, so examining these lines for any signs of wear or damage is advisable. Lastly, a damaged or improperly tightened oil drain plug can also be a source of leaks, so ensuring it is secure is a simple yet effective preventive measure. By being aware of these common issues and conducting regular inspections, DIY enthusiasts can maintain their Acura TLX's performance and prevent more significant engine damage.

How urgent is it to address the oil leak in my 2018 Acura TLX?

Addressing an oil leak in your 2018 Acura TLX is an urgent matter that should not be overlooked. The consequences of ignoring this issue can be severe, leading to significant engine damage that may require costly repairs or even result in complete engine failure. Oil plays a vital role in lubricating engine components, and a leak can disrupt this essential function, ultimately affecting your vehicle's performance and efficiency. Moreover, an oil leak poses safety risks, as oil can drip onto hot engine parts, creating a fire hazard. Additionally, the environmental impact of leaking oil can be detrimental, as it can contaminate soil and water sources. Therefore, it is crucial to have any oil leak inspected and repaired promptly by a qualified mechanic to ensure the safety, reliability, and longevity of your Acura TLX.

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