2009 INFINITI FX35 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2009 INFINITI FX35 and How to Address Them Effectively

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Reviewed by
Bo Fader
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 2009 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 2009 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 2009 INFINITI FX35?

To effectively diagnose an oil leak in your 2009 INFINITI FX35, 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 the 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, such as the valve cover and oil pan gaskets, since wear and tear can lead to oil seepage. For a more thorough investigation, consider adding UV dye to the oil, which can be illuminated with a UV light to reveal hidden leaks. If these methods do not yield results, performing a pressure test on the oil system can help identify the leak's exact location. Should you still be unable to locate the issue, consulting a qualified mechanic is advisable to ensure a proper diagnosis and repair. By following this structured approach, you can systematically identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2009 INFINITI FX35?

When dealing with oil leaks in a 2009 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 lead to noticeable oil spots under the vehicle. Similarly, valve cover gaskets are prone to wear and can develop leaks, allowing oil to escape around the valve covers. Another area to inspect is the oil filter housing gasket; if this seal fails, it can result in oil leaking around the oil filter. Additionally, the rear main seal, located at the back of the engine, is another potential source of leaks, often causing oil to drip onto the ground. Lastly, the seals around the oil cooler can also wear out, contributing to oil leaks in that area. Addressing these leaks promptly is essential to prevent engine damage and ensure optimal vehicle performance, making regular inspections and maintenance vital for any DIY enthusiast.

How urgent is it to address the oil leak in my 2009 INFINITI FX35?

Addressing an oil leak in your 2009 INFINITI FX35 is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Ignoring an oil leak can lead to severe engine damage due to insufficient lubrication, which can ultimately result in costly repairs or even engine failure. Additionally, maintaining the correct oil level is essential for your vehicle's performance and fuel efficiency, as low oil levels can hinder engine function. Beyond mechanical concerns, an oil leak poses significant safety risks; oil can drip onto hot engine components, creating a fire hazard that endangers both you and your passengers. Furthermore, the environmental implications of an oil leak cannot be overlooked, as spilled oil can contaminate soil and water sources, contributing to pollution. Therefore, it is crucial to prioritize the repair of any oil leaks in your vehicle to safeguard your investment, ensure safe driving conditions, and protect the environment.

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