2019 Subaru WRX Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2019 Subaru WRX and How to Address Them Effectively

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Reviewed by
Andrew Hajjar
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 2019 Subaru WRX 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 2019 Subaru WRX 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 steps should I take to diagnose the oil leak in my 2019 Subaru WRX?

To effectively diagnose an oil leak in your 2019 Subaru WRX, begin by locating the source of the leak. This involves checking under the vehicle for any visible oil drips or pooling, as well as inspecting the engine and surrounding components for oil stains or wet spots. Once you have a general area identified, verify the oil level in the engine; consistently low levels may indicate a leak. Next, focus on the gaskets and seals, particularly the valve cover gasket, oil pan gasket, and oil filter, as these are common leak points. Ensure the oil filter is securely installed and free from damage, as a loose filter can also lead to leaks. Don’t forget to check the oil drain plug for tightness, as a loose plug can contribute to oil loss. If the leak remains elusive, consider adding UV dye to the engine oil and using a UV light after running the engine to pinpoint the source. If these steps do not yield results, consulting a mechanic is advisable for a thorough inspection and professional guidance. By following this structured approach, you can efficiently diagnose and address the oil leak in your Subaru WRX.

What are the common causes of oil leaks in a 2019 Subaru WRX?

When dealing with oil leaks in a 2019 Subaru WRX, 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 deteriorate over time and lead to leaks. Additionally, valve cover gaskets are prone to wear and can also develop leaks, allowing oil to escape. Another area to inspect is the oil filter housing gasket; if this component fails, it can result in noticeable oil leaks within the engine bay. Furthermore, the front crankshaft seal is another potential source of leaks, as it can wear out and allow oil to seep from the front of the engine. Lastly, a leaking rear main seal can cause oil to leak near the back of the engine or transmission. Addressing these issues promptly is essential to maintain engine health and performance, and regular inspections can help catch these problems early, making it easier for DIY enthusiasts to tackle repairs effectively.

How urgent is it to address the oil leak in my 2019 Subaru WRX to prevent potential engine damage?

Addressing an oil leak in your 2019 Subaru WRX is of utmost importance to prevent serious engine damage. Oil plays a vital role in lubricating engine components, and a leak can lead to insufficient lubrication, resulting in increased friction and wear on critical parts. If left unattended, the oil levels can drop significantly, leading to overheating and further deterioration of the engine. Moreover, a substantial leak may cause a loss of oil pressure, which is essential for the engine's proper functioning. Low oil pressure can lead to catastrophic engine failure over time. Therefore, it is crucial to regularly check your oil levels and promptly address any leaks. Ignoring this issue not only jeopardizes the performance and reliability of your vehicle but can also lead to costly repairs down the line. For the best outcome, have a qualified mechanic diagnose and repair the leak as soon as possible to ensure your Subaru WRX remains in optimal condition.

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2019 Subaru WRX Leaking Oil: Causes & Repair Costs