2015 Buick Encore Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2015 Buick Encore and How to Fix Them

Find Repair Location
Reviewed by
Bo Fader
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 Buick Encore 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 Buick Encore 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 2015 Buick Encore?

To effectively diagnose an oil leak in your 2015 Buick Encore, start by visually inspecting the engine and the area beneath the vehicle for any signs of oil accumulation or drips. This initial step helps you locate the source of the leak, which is crucial for further assessment. Next, check the oil level using the dipstick; a significant drop may indicate a serious leak that requires immediate attention. Pay close attention to the oil filter and drain plug, as these components are common culprits for leaks; ensure they are securely tightened and free from oil residue. Additionally, examine the gaskets and seals around the engine, as wear and tear can lead to leaks. If the source remains elusive, consider adding UV dye to the engine oil and using a UV light to identify the leak's origin, as the dye will illuminate under the light. For a more thorough investigation, performing a pressure test on the oil system can help detect leaks in hoses and fittings. By following this structured diagnostic approach, you can efficiently identify and address the oil leak in your Buick Encore, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2015 Buick Encore?

When dealing with oil leaks in a 2015 Buick Encore, 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. Similarly, the valve cover gasket, which seals the valve cover to the cylinder head, can also fail, resulting in oil seeping out. Another potential source of leaks is the oil filter housing gasket; if this component is faulty, it can allow oil to escape. Additionally, the rear main seal, located at the back of the engine, is known to develop leaks as it ages. Lastly, oil cooler lines can also be a source of leaks, as they may wear out or become damaged. Addressing these issues promptly is essential to prevent further engine damage and maintain optimal vehicle performance. Regular inspections and maintenance can help you catch these problems early, ensuring your Buick Encore runs smoothly.

How urgent is it to address the oil leak in my 2015 Buick Encore?

When it comes to your 2015 Buick Encore, addressing an oil leak should be treated with a sense of urgency. Oil is crucial for lubricating engine components, and a leak can lead to a significant loss of oil, which may result in severe engine damage if not resolved quickly. Additionally, oil that drips onto hot engine parts can create a fire hazard, increasing the risk of overheating and potentially catastrophic engine failure. Beyond the immediate safety concerns, neglecting an oil leak can have environmental repercussions, as oil can contaminate soil and water sources. Regularly checking for signs of oil leaks and taking swift action not only helps maintain your vehicle's performance but also ensures your safety on the road. Therefore, if you notice any signs of an oil leak, it is advisable to address the issue as soon as possible to avoid costly repairs and ensure the longevity of your Buick Encore.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.