2015 INFINITI QX80 Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2015 INFINITI QX80 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 2015 INFINITI QX80 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 2015 INFINITI QX80 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.

An oil leak may be noted on the ground where the vehicle is parked. However, many vehicles have plastic trays underneath the engine that may catch leaking oil and conceal the leak. In such cases, a low oil level, a burning oil smell, or even smoke from oil burning in the engine bay may be noted.

»MORE: Signs of a bad oil pan gasket

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 are the steps to diagnose the oil leak in a 2015 INFINITI QX80?

To effectively diagnose an oil leak in your 2015 INFINITI QX80, start by visually inspecting the engine bay and the area beneath the vehicle. Look closely at common leak points such as the oil pan, oil filter, and oil drain plug, as these are often the culprits. Next, check the oil levels; a significant drop can indicate a leak that needs immediate attention. Pay special attention to gaskets and seals, particularly the valve cover gasket and oil pan gasket, as these components frequently wear out and lead to leaks. Additionally, observe the ground where you park your vehicle for any oil stains or puddles, which can help you pinpoint the leak's location. If the source remains elusive, consider performing a pressure test on the oil system, as this can reveal leaks that are not visible during a standard inspection. Should you still be unable to identify the issue, consulting a professional mechanic is advisable to ensure a thorough diagnosis and repair. By following this structured approach, you can efficiently tackle the problem and maintain your vehicle's performance.

What are the common causes of oil leaks in a 2015 INFINITI QX80?

When dealing with oil leaks in a 2015 INFINITI QX80, it's crucial to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can wear out over time, leading to leaks. Additionally, worn valve cover gaskets are another common source of oil seepage, as they can deteriorate with age and usage. A faulty oil filter housing gasket can also contribute to leaks, particularly around the oil filter area, making it essential to check this component during inspections. Furthermore, oil cooler lines may develop leaks due to wear and tear, resulting in oil escaping from these connections. Lastly, cracked or damaged oil seals, such as those found on the crankshaft or camshaft, can lead to significant oil leaks if not addressed. By being aware of these potential issues, DIY enthusiasts can take proactive steps to inspect and maintain their vehicle, ensuring optimal performance and preventing further damage. Regular maintenance and timely inspections are key to catching these problems early.

How urgent is it to address the oil leak in my 2015 INFINITI QX80?

Addressing an oil leak in your 2015 INFINITI QX80 is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. Ignoring an oil leak can lead to severe engine damage due to insufficient lubrication, which increases friction among engine components. This can escalate into costly repairs or even complete engine failure if the oil levels drop too low, resulting in overheating. Moreover, a leaking oil can compromise your vehicle's performance and fuel efficiency, making it less reliable on the road. Safety is another paramount concern, as oil leaks can create fire hazards if oil drips onto hot engine parts. Therefore, it is essential to diagnose and repair any oil leaks as soon as they are detected. For those considering a DIY approach, understanding the urgency of the situation can guide you in taking the necessary steps to ensure your vehicle remains safe and operational.

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