2008 INFINITI M35 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2008 INFINITI M35 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 2008 INFINITI M35 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 2008 INFINITI M35 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 2008 INFINITI M35?

To effectively diagnose an oil leak in your 2008 INFINITI M35, begin with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Start by locating the leak; inspect the area beneath your vehicle for any visible oil drips or stains, which can provide immediate clues. Next, check the oil level in the engine; a consistently low level may indicate a leak. Pay close attention to the oil filter and drain plug, ensuring they are secure and free from damage. Gaskets and seals are common culprits for leaks, so examine the valve cover gasket, oil pan gasket, and camshaft seals for any signs of wear or leakage. If the source remains elusive, consider adding UV dye to the oil, as this can help illuminate the leak under a UV light. For more challenging situations, a pressure test can be conducted to identify hidden leaks within the oil system. If these methods do not yield results or if you feel uncertain about the process, consulting a mechanic is a wise choice, as they can provide a thorough inspection and professional recommendations for repair. By following this structured diagnostic approach, you can efficiently identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2008 INFINITI M35?

When dealing with oil leaks in a 2008 INFINITI M35, 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 that may go unnoticed until they cause significant oil loss. Similarly, valve cover gaskets are prone to leaks due to age or improper installation, allowing oil to escape from the engine. Another critical area to inspect is the oil filter housing gasket; if this component fails, it can create leaks around the oil filter, complicating maintenance tasks. Additionally, the rear main seal is a vital part that can wear out, resulting in oil leaking from the back of the engine, which can be particularly challenging to access. Lastly, oil cooler seal leaks are also common in this model, contributing to the overall oil loss. Addressing these issues promptly is crucial not only for maintaining engine health but also for ensuring the vehicle runs smoothly, making it a worthwhile endeavor for any DIY mechanic.

How urgent is it to address the oil leak in my 2008 INFINITI M35?

When dealing with an oil leak in your 2008 INFINITI M35, understanding the urgency of the situation is crucial. A minor leak may seem manageable, but even small losses can escalate quickly, leading to significant oil depletion that risks engine damage. Regularly checking your oil level is essential; if you notice a rapid decline, it’s a clear sign that immediate action is needed. Beyond mechanical concerns, safety is paramount—oil leaks can create fire hazards if oil drips onto hot engine parts, so any unusual smells or smoke should prompt immediate inspection. Neglecting an oil leak can result in costly repairs or even engine failure, making it vital to address the issue as soon as possible. While a professional mechanic can provide a thorough assessment, being proactive about any signs of leakage will help ensure the longevity and safety of your vehicle.

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2008 INFINITI M35 Oil Leaking Causes & Repairs | RepairPal