2018 Acura RLX Is Leaking Oil

Discover the Common Causes of Oil Leaks in Your 2018 Acura RLX 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 RLX 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 RLX 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 RLX?

When diagnosing an oil leak in your 2018 Acura RLX, 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 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 within the engine, such as the valve cover and oil pan gaskets, since wear and tear can lead to leaks. If the source remains elusive, consider using UV dye in the oil, which can illuminate the leak under a UV light, making it easier to identify. For more complex issues, a pressure test of the oil system can reveal hidden leaks. If these methods do not yield results, consulting a professional mechanic is advisable, as they possess the expertise and tools necessary for a thorough diagnosis and repair. By following this structured diagnostic approach, you can effectively identify and address the oil leak in your Acura RLX.

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

When dealing with oil leaks in a 2018 Acura RLX, 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 noticeable oil seepage. Additionally, worn valve cover gaskets are another common source of leaks, often resulting in oil escaping from the top of the engine. It's also important to check the oil filter housing gasket, as a faulty seal here can cause oil to leak around the oil filter area. Furthermore, leaking oil cooler lines, particularly at their connections, can contribute to oil loss. Lastly, a damaged or improperly installed oil drain plug can also be a source of leaks from the oil pan. Addressing these issues promptly is essential not only for maintaining the vehicle's performance but also for preventing potential engine damage. By being aware of these common causes, DIY enthusiasts can take the necessary steps to diagnose and fix oil leaks effectively.

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

Addressing an oil leak in your 2018 Acura RLX is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. An oil leak can severely compromise the lubrication of your engine, leading to increased friction and wear on vital components, which can escalate into costly repairs or even complete engine failure. Moreover, neglecting this issue can result in a dangerous loss of oil pressure, heightening the risk of engine overheating and potential fires due to oil dripping onto hot surfaces. The safety of you and your passengers is paramount, and an oil leak poses a significant hazard that should not be overlooked. Additionally, the continuous loss of oil can diminish your vehicle's performance and fuel efficiency, ultimately leading to higher operating costs. Therefore, it is crucial to prioritize the repair of any oil leaks to maintain the integrity and safety of your Acura RLX.

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2018 Acura RLX Oil Leak Causes & Repairs | RepairPal