2018 Nissan LEAF Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2018 Nissan LEAF 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 2018 Nissan LEAF 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 2018 Nissan LEAF 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.

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 initial steps to diagnose the oil leak in a 2018 Nissan LEAF?

To effectively diagnose an oil leak in your 2018 Nissan LEAF, start by locating the source of the leak. Begin by inspecting the area beneath your vehicle for any visible oil spots or puddles, as this can provide immediate clues about where the leak is originating. Next, turn your attention to the oil pan; check for any cracks or signs of damage that could be allowing oil to escape. The oil filter is another critical component to examine; ensure it is properly secured and free from leaks. Don’t overlook the oil drain plug, as a loose or damaged plug can also lead to oil loss. Additionally, inspect the gaskets and seals around the engine, as wear and tear in these areas can contribute to leaks. Finally, keep an eye on your oil levels over time to gauge the severity of the leak and assist in pinpointing its location. By following these steps, you can systematically identify and address the oil leak, ensuring your Nissan LEAF remains in optimal condition.

What are the common causes of oil leakage in a 2018 Nissan LEAF?

When dealing with oil leakage in a 2018 Nissan LEAF, it's crucial to understand the common culprits that may be at play. One frequent issue is a worn or damaged oil pan gasket, which can lead to noticeable oil spots under the vehicle. Additionally, a faulty or improperly installed oil filter can also result in leaks, so checking the filter's condition and installation is essential. Another area to inspect is the drain plug; if it’s loose or damaged, it can easily cause oil to escape. Furthermore, the valve cover gasket may wear out over time, leading to leaks from the top of the engine, while the oil cooler seal can deteriorate, contributing to oil leakage in the cooling system. Addressing these issues promptly is vital to prevent further engine damage and ensure optimal vehicle performance. Regular maintenance checks can help you catch these problems early, allowing for a DIY fix before they escalate.

How urgent is it to address the oil leak in my 2018 Nissan LEAF?

Addressing an oil leak in your 2018 Nissan LEAF is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Ignoring an oil leak can lead to a significant decline in engine performance and efficiency, which may result in costly repairs down the line. As oil levels drop, the risk of engine overheating increases, potentially leading to catastrophic engine failure. Moreover, the safety implications cannot be overlooked; leaking oil can drip onto hot engine components, creating a fire hazard that endangers both the vehicle and its occupants. By taking prompt action to fix the oil leak, you not only safeguard your vehicle's longevity but also protect yourself and others on the road from potential dangers. Therefore, it is crucial to prioritize this issue and seek repairs as soon as possible to maintain optimal vehicle performance and safety.

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