2021 Subaru Crosstrek Is Leaking Oil

Address Oil Leaks in Your 2021 Subaru Crosstrek 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 2021 Subaru Crosstrek 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 2021 Subaru Crosstrek 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 2021 Subaru Crosstrek?

When diagnosing an oil leak in your 2021 Subaru Crosstrek, it's essential to adopt a systematic approach that begins with the most straightforward checks. Start by locating the leak; inspect the area beneath your vehicle for any oil drips or puddles, and examine the engine and transmission for wet spots or stains. Next, check the oil level to determine if it is consistently low, which could indicate a leak. Pay close attention to the oil filter and drain plug, ensuring they are secure and free from damage. Additionally, inspect the gaskets and seals, such as the valve cover and oil pan gaskets, as wear and tear can lead to leaks. If the source remains elusive, consider adding UV dye to the oil, which can help illuminate the leak under a UV light. For a more thorough investigation, a pressure test of the oil system can reveal hidden leaks. If these methods do not yield results or if you feel uncertain about the process, consulting a qualified mechanic is advisable, as they possess the expertise and tools necessary for accurate diagnosis and repair. This step-by-step approach not only simplifies the process but also enhances your chances of successfully identifying and addressing the oil leak.

What are the common causes of oil leaks in a 2021 Subaru Crosstrek?

When dealing with oil leaks in a 2021 Subaru Crosstrek, it's crucial to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can wear out over time and lead to leaks. Additionally, a faulty or improperly installed oil filter can also result in oil escaping, so it's important to ensure that this component is correctly fitted. Another potential source of leaks is a worn-out oil drain plug; if this plug is not tightened properly or has deteriorated, it can allow oil to seep out. Furthermore, valve cover gasket leaks are common as these gaskets can deteriorate with age, causing oil to escape from the engine. Lastly, the oil cooler seal can degrade, leading to leaks as well. Addressing these issues promptly is essential not only for maintaining optimal vehicle performance but also for preventing more severe engine damage. Regular inspections and maintenance 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 2021 Subaru Crosstrek?

Addressing an oil leak in your 2021 Subaru Crosstrek is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Oil leaks can significantly reduce oil levels, leading to inadequate lubrication of engine components, which can cause severe damage over time. Furthermore, neglecting an oil leak can result in engine overheating, potentially leading to costly repairs or even complete engine failure. The safety risks associated with oil leaks cannot be overlooked either, as leaking oil can drip onto hot engine parts, creating a fire hazard. By regularly monitoring for oil leaks and addressing them promptly, you can maintain the performance and longevity of your vehicle. Therefore, it is crucial to take action as soon as you notice any signs of an oil leak to ensure the safety and reliability of your Subaru Crosstrek.

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