2015 Subaru Outback Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2015 Subaru Outback 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 2015 Subaru Outback 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 2015 Subaru Outback 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 an oil leak in a 2015 Subaru Outback?

To effectively diagnose an oil leak in your 2015 Subaru Outback, start by checking for visible signs of oil leaks, such as droplets or dark puddles under the vehicle. This initial observation can provide immediate clues about the leak's location. Next, open the hood and inspect the engine components, focusing on areas like the oil pan and valve gasket cover for any signs of oil buildup or dripping. Cleaning the suspected areas with brake cleaner can help reveal the source of the leak by eliminating dirt that may obscure it. Regularly checking your oil levels using the dipstick is also crucial; consistently low levels may indicate a leak. Additionally, monitor for other symptoms, such as blue smoke from the exhaust or a burning oil smell inside the cabin, which can further confirm oil-related issues. Keeping track of oil consumption and noting how often you need to add oil can provide valuable insights into the severity of the leak. If these steps do not lead to a clear diagnosis, or if you feel uncertain about the findings, consulting a mechanic with experience in Subaru vehicles is advisable for a thorough assessment and repair estimate. By following this structured approach, you can efficiently identify and address oil leaks in your vehicle.

What are the common causes of oil leaks in a 2015 Subaru Outback?

When tackling oil leaks in a 2015 Subaru Outback, it's essential to identify the common culprits that may be causing the problem. One of the primary sources is the valve cover gasket, which can deteriorate over time, leading to leaks if it becomes damaged or if the bolts are loose. Additionally, camshaft seals and timing case seals are notorious for leaking, especially as they age, so inspecting these areas is crucial. The oil pan gasket is another frequent offender; wear and tear can cause it to fail, resulting in oil seeping from the pan. While head gasket failures are less common in newer models, it's still wise to check for leaks between the engine block and timing chain cover. Other potential leak sources include the drain plug and gasket, which can suffer from improper installation, and the piston access plugs and crank seal, both of which may leak due to wear. By understanding these common issues, DIYers can better diagnose and address oil leaks in their Subaru Outback, ensuring a smoother and more reliable driving experience.

How urgent is it to address the oil leak in my 2015 Subaru Outback?

When it comes to addressing an oil leak in your 2015 Subaru Outback, understanding the urgency is crucial to prevent severe engine damage. Even if the leak appears minor, such as a few drops after an oil change, it’s essential to monitor the oil level closely. Neglecting the issue can lead to catastrophic engine failure, as insufficient lubrication can cause critical engine components to grind against each other, resulting in costly repairs. Common leak locations, including the valve cover gaskets and oil pan gasket, can often be repaired, but the complexity and cost of these repairs can vary significantly. If you notice that the oil level dips below the minimum on the dipstick, refrain from starting the vehicle until the oil is topped off, as driving with low oil can cause immediate damage. While temporary solutions like oil stop leaks may provide short-term relief, they are not substitutes for a proper repair. Therefore, it is highly advisable to consult a mechanic to address the leak promptly, ensuring the longevity and reliability of your vehicle. Regularly checking the oil level and addressing any leaks as soon as they are detected is key to maintaining your Subaru's performance and preventing more serious issues down the line.

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2015 Subaru Outback Oil Leak Causes & Repairs | RepairPal