2017 Mazda MX-5 Miata Is Leaking Oil

Address Oil Leaks in Your 2017 Mazda MX-5 Miata 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 2017 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 2017 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 steps to diagnose the oil leak in a 2017 Mazda MX-5 Miata?

To effectively diagnose an oil leak in your 2017 Mazda MX-5 Miata, begin by thoroughly inspecting the engine bay and the area beneath the vehicle for any visible signs of oil, such as stains or drips, which can help you locate the source of the leak. Next, check the oil level using the dipstick; a significant drop may indicate a leak that needs addressing. Pay close attention to the oil filter and drain plug, ensuring they are securely tightened, as loose components can often lead to leaks. Additionally, examine the gaskets and seals around the oil pan and valve cover for any signs of wear or damage, as these are common culprits for oil leaks. If the source remains elusive, consider performing a pressure test to identify leaks that may not be immediately visible. Should you still be unable to pinpoint the issue, consulting a mechanic for a professional diagnosis is a prudent step to ensure your vehicle is properly serviced.

What are the common causes of oil leaks in a 2017 Mazda MX-5 Miata?

When diagnosing oil leaks in a 2017 Mazda MX-5 Miata, it's essential to understand the common problems that can arise. One frequent culprit is the oil pan gasket, which can wear out over time, leading to leaks that may require replacement. Similarly, the valve cover gasket is another critical component that can deteriorate, allowing oil to escape from the engine. Additionally, the oil filter housing gasket is prone to failure, particularly if not inspected during routine maintenance, which can result in significant leaks. Another area to consider is the rear main seal, located at the back of the engine; this seal can develop leaks as it ages, causing oil to drip from the engine's underside. Lastly, the oil cooler seals should not be overlooked, as they can also wear out and lead to oil leaks. By being aware of these common issues and conducting regular inspections, DIY enthusiasts can effectively maintain their Mazda MX-5 Miata and prevent potential oil leak problems.

How urgent is it to address the oil leak in my 2017 Mazda MX-5 Miata?

Addressing an oil leak in your 2017 Mazda MX-5 Miata is crucial, and the urgency of the situation cannot be overstated. A minor leak may seem manageable, but even small amounts of oil loss can lead to serious engine performance issues over time, as oil is essential for lubricating critical engine components. If left unattended, a leak can escalate, resulting in a major loss of oil that could cause engine damage or failure, leading to costly repairs. Moreover, oil leaks pose safety risks; oil dripping onto hot engine parts can ignite, creating a fire hazard that endangers both you and your vehicle. Additionally, the environmental impact of oil leaks is significant, as they can contaminate soil and water sources. Therefore, it is advisable to address any signs of an oil leak promptly to prevent further damage, ensure your vehicle operates safely, and protect the environment. Taking action sooner rather than later can save you time, money, and potential hazards down the road.

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2017 Mazda MX-5 Miata Oil Leak Causes & Repairs | RepairPal