2009 INFINITI G37 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2009 INFINITI G37 and How to Address Them Effectively

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Reviewed by
Andrew Hajjar
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 G37 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 G37 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 potential causes and diagnostic steps for an oil leak in a 2009 INFINITI G37?

When tackling an oil leak in your 2009 INFINITI G37, it's essential to adopt a systematic diagnostic approach. Begin with a thorough visual inspection under the vehicle to identify any obvious signs of oil pooling or dripping. Next, monitor your oil levels regularly; a significant drop can indicate a leak. Pay close attention to the gaskets and seals, as these components often wear out over time and can be a primary source of leaks. Inspect the oil pan and drain plug for any signs of damage or looseness, as these areas are common culprits. Additionally, ensure that the oil filter is correctly installed and free from defects, as a faulty filter can lead to leaks. Don’t overlook the oil cooler, which should also be examined for any signs of damage. If the source of the leak remains elusive, consider conducting a pressure test to help pinpoint the issue. This methodical approach not only helps in identifying the leak but also empowers you to address the problem effectively, ensuring your vehicle runs smoothly and efficiently.

What are the common causes of oil leaks in a 2009 INFINITI G37?

When dealing with oil leaks in a 2009 INFINITI G37, it's essential to understand the common problems that can arise, as this knowledge can empower DIY enthusiasts to tackle repairs effectively. One prevalent issue is the deterioration of the oil pan gasket, which can wear out over time, leading to leaks. Similarly, valve cover gaskets may also fail due to age or improper installation, allowing oil to escape from the engine. Another area to inspect is the oil filter housing gasket; if this component is faulty, it can create leaks around the oil filter, which is often a messy and noticeable problem. Additionally, the rear main seal, located at the back of the engine, can deteriorate and cause significant oil loss if not addressed promptly. Lastly, the seals around the oil cooler are also susceptible to wear, potentially leading to leaks in that area. By being aware of these common causes, you can perform regular maintenance checks and address any issues before they escalate, ensuring your vehicle remains in optimal condition.

How urgent is it to address an oil leak in a 2009 INFINITI G37?

Addressing an oil leak in your 2009 INFINITI G37 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 inadequate lubrication, which is essential for the smooth operation of engine components. As oil levels drop, the risk of overheating increases significantly, potentially resulting in catastrophic engine failure. Furthermore, a persistent oil leak can compromise the overall performance of your vehicle, leading to decreased efficiency and increased repair costs down the line. Therefore, it is imperative to act swiftly when you notice any signs of an oil leak to safeguard your engine's health and ensure the longevity of your INFINITI G37.

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