2011 INFINITI FX35 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2011 INFINITI FX35 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 2011 INFINITI FX35 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 2011 INFINITI FX35 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 steps should I take to diagnose the oil leak in my 2011 INFINITI FX35?

To effectively diagnose an oil leak in your 2011 INFINITI FX35, begin with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Start by locating the leak; inspect the area under the vehicle for any visible oil drips or stains, which can provide immediate clues about the source. Next, check the oil level to determine if it is consistently low, as this can indicate a leak. Pay close attention to the oil filter and drain plug, ensuring they are secure and free from damage. Additionally, examine the gaskets and seals within the engine, as wear or deterioration in these components often leads to leaks. For a more thorough investigation, consider using UV dye in the engine oil, which can help illuminate the leak's origin when viewed under a UV light. If these methods do not yield results, performing a pressure test on the oil system can further pinpoint the issue. Should you still be unable to identify the leak, consulting a professional mechanic is advisable, as they possess the expertise and specialized tools necessary for accurate diagnosis and repair. By following this structured approach, you can efficiently identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2011 INFINITI FX35?

When diagnosing oil leaks in a 2011 INFINITI FX35, it's crucial to understand the common culprits that may be at play. One frequent issue is the deterioration of the oil pan gasket, which can wear out over time, leading to leaks as it fails to create a proper seal between the oil pan and the engine. Similarly, valve cover gaskets are prone to wear and can develop leaks, allowing oil to escape from the engine compartment. Another area to inspect is the oil filter housing gasket; if this component fails, it can result in oil leaking around the oil filter, creating a mess and potential engine damage. Additionally, the rear main seal, located at the back of the engine, can also wear out, causing significant oil leaks that may go unnoticed until they lead to more severe issues. Lastly, the oil cooler seals are another potential source of leaks, as they can deteriorate over time, leading to oil escaping near the oil cooler. Addressing these issues promptly is essential for maintaining the performance and longevity of your INFINITI FX35, making it important for DIY enthusiasts to be aware of these common causes when troubleshooting oil leaks.

How urgent is it to address an oil leak in a 2011 INFINITI FX35?

Addressing an oil leak in a 2011 INFINITI FX35 is critical and should be treated with urgency. Ignoring this issue can lead to severe consequences, including engine damage due to insufficient lubrication. Oil plays a vital role in reducing friction among engine components, and a leak can result in low oil levels, which may cause the engine to overheat. This overheating can lead to catastrophic failures and expensive repairs. Moreover, an oil leak can create slippery conditions on the road, posing safety hazards not just for the driver but for others as well. For DIY enthusiasts, it is essential to act quickly upon noticing any signs of an oil leak. By promptly addressing the issue, you not only safeguard the engine's performance and longevity but also enhance overall road safety. Taking immediate action is key to preventing further complications and ensuring your vehicle operates smoothly.

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2011 INFINITI FX35 Oil Leak Causes & Repairs | RepairPal