2014 Mazda MX-5 Miata Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2014 Mazda MX-5 Miata and How to Fix Them

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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 2014 Mazda MX-5 Miata 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 2014 Mazda MX-5 Miata 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 initial diagnostic steps to identify the source of an oil leak in a 2014 Mazda MX-5 Miata?

To effectively identify the source of an oil leak in your 2014 Mazda MX-5 Miata, start with a thorough inspection of the oil level, as a significant drop may indicate a leak. Next, examine the area beneath the vehicle for any visible oil puddles or drips, which can provide immediate clues. Moving to the engine bay, look for oil stains or wet spots around critical components such as gaskets, seals, and the oil pan. Pay special attention to the oil filter and drain plug, ensuring they are secure and free from leaks, as these are common culprits. Additionally, inspect the valve cover gasket and oil pan gasket for signs of wear or damage, as these can often lead to oil seepage. If the leak remains elusive, consider using UV dye mixed with the engine oil, which can help illuminate the source under a UV light. By following this structured diagnostic approach, you can efficiently narrow down the potential sources of the oil leak and take the necessary steps to resolve the issue.

What are the common causes of oil leaks in a 2014 Mazda MX-5 Miata?

When diagnosing oil leaks in a 2014 Mazda MX-5 Miata, it's essential to understand the common culprits that may be at play. One frequent issue is the deterioration of the valve cover gasket, which can lead to oil seeping out as it ages. Similarly, the oil pan gasket is another critical area to inspect, as it can become damaged or degrade over time, resulting in leaks from the engine's base. Additionally, the rear main seal, located at the back of the engine, is prone to wear and can cause significant oil seepage if it fails. It's also important to check the seals around the camshaft and crankshaft, as these can wear out and contribute to leaks. Lastly, the oil filter housing gasket should not be overlooked, as a failure here can lead to oil leaking from that specific area. By being aware of these common issues, DIYers can take proactive steps to inspect and repair their vehicle, ensuring optimal engine performance and preventing further damage.

How urgent is it to address the oil leak in my 2014 Mazda MX-5 Miata?

When it comes to an oil leak in your 2014 Mazda MX-5 Miata, the urgency of addressing the issue cannot be overstated. Ignoring this problem can lead to severe engine damage due to inadequate lubrication, which increases friction and heat within the engine components. This not only jeopardizes the performance of your vehicle but can also result in costly repairs down the line. Additionally, oil leaks pose environmental hazards, as they can contaminate soil and water sources, contributing to pollution. From a safety perspective, oil leaks create slippery surfaces that heighten the risk of accidents, making it crucial to resolve the issue promptly. Financially, the longer you wait to fix the leak, the more extensive the damage may become, leading to higher repair costs. Therefore, it is essential to act quickly to maintain your vehicle's performance, ensure safety, and protect the environment.

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2014 Mazda MX-5 Miata Oil Leak Causes & Repairs | RepairPal