2008 INFINITI M45 Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2008 INFINITI M45 and How to Address Them Effectively

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Reviewed by
Aisha
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 M45 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 M45 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.

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 of an oil leak in a 2008 INFINITI M45, and how can they be diagnosed?

When diagnosing an oil leak in a 2008 INFINITI M45, it's essential to adopt a systematic approach that begins with the most accessible components. Start by visually inspecting the gaskets, particularly the valve cover and oil pan gaskets, for any signs of wear or damage, as these are common culprits. Next, check the oil drain plug to ensure it is tight and free from defects, as a loose or faulty plug can easily lead to leaks. If these initial checks do not reveal the source, examine the oil pan for any dents or cracks that may have resulted from road debris. Additionally, inspect the oil seals, including the crankshaft and camshaft seals, for signs of deterioration, as worn seals can also contribute to leaks. Don’t overlook the oil filter; ensure it is properly installed and functioning, as a faulty filter can be a source of oil loss. In rare cases, a cracked engine block may be the issue, necessitating a more thorough inspection. If the source of the leak remains elusive, consulting a qualified mechanic is advisable, as they can employ advanced diagnostic methods to accurately identify the problem and recommend the necessary repairs. This step-by-step approach not only simplifies the diagnostic process but also helps in addressing the issue efficiently, potentially saving time and repair costs.

What are the common and less frequent causes of oil leaks in a 2008 INFINITI M45?

Understanding the common and less frequent causes of oil leaks in a 2008 INFINITI M45 is essential for any DIY mechanic looking to tackle this issue. The most prevalent culprits include a degraded oil pan gasket, which can wear out over time, leading to leaks. Similarly, valve cover gaskets may develop leaks due to age or improper installation, while a faulty oil filter housing gasket can also be a source of oil loss. Additionally, oil cooler seal leaks are not uncommon and can contribute to the problem. On the less frequent side, issues such as a rear main seal leak, timing cover gasket leak, or a faulty oil pressure sensor can also result in oil leaks, though these are rarer. Addressing these leaks promptly is crucial to prevent engine damage and maintain optimal vehicle performance. Regular inspections and maintenance can help identify these issues early, allowing DIY enthusiasts to take corrective action before they escalate.

How urgent is it to address the oil leak in my 2008 INFINITI M45?

Addressing an oil leak in your 2008 INFINITI M45 is not just a matter of routine maintenance; it is a pressing concern that requires immediate attention. The urgency stems from the potential for significant engine damage due to decreased oil levels, which can compromise lubrication and lead to costly repairs. Additionally, oil leaks pose a serious fire hazard, especially when oil drips onto hot engine components, creating a dangerous situation that could endanger both the vehicle and its occupants. Furthermore, the environmental impact of leaking oil cannot be overlooked, as it can contaminate soil and water sources, contributing to pollution. Therefore, it is crucial to act swiftly and address any signs of an oil leak to ensure the safety of your vehicle, protect the environment, and avoid expensive repairs down the line.

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2008 INFINITI M45 Oil Leak Causes & Repair Costs | RepairPal