2020 Chevrolet Malibu Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2020 Chevrolet Malibu and How to Fix Them

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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 2020 Chevrolet Malibu 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 2020 Chevrolet Malibu 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 steps should I take to diagnose the oil leak in my 2020 Chevrolet Malibu?

When diagnosing an oil leak in your 2020 Chevrolet Malibu, it's crucial to take a methodical approach that begins with the simplest checks. Start by inspecting the area beneath your car for any visible oil spots or drips, as this can help pinpoint the leak's origin. Next, examine the oil pan for any signs of cracks or damage, which are common sources of leaks. Ensure that the oil filter is properly secured, as a loose or defective filter can also contribute to oil loss. Don't forget to check the oil drain plug; it should be tight and undamaged to prevent leaks. Additionally, inspect the gaskets and seals around the engine, as wear in these components can lead to oil escaping. Regularly monitoring your oil levels is also important, as a significant drop can indicate a leak. If these initial checks do not reveal the source of the problem, it may be time to consult a mechanic for a professional diagnosis and repair. By following this structured approach, you can effectively identify and resolve the oil leak in your vehicle.

What are the common causes of oil leaks in a 2020 Chevrolet Malibu?

When dealing with oil leaks in a 2020 Chevrolet Malibu, 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. Similarly, a worn valve cover gasket can also contribute to oil escaping from the engine. Another potential source of leaks is a faulty oil filter; if it is improperly installed or damaged, it can result in significant oil loss. Additionally, a loose or damaged oil drain plug can allow oil to leak from the oil pan, making it essential to check its condition regularly. In more severe cases, a cracked engine block may be the source of the leak, although this is less common. Addressing these issues promptly is vital to prevent further engine damage and maintain the vehicle's performance. Regular inspections and maintenance can help you catch these problems early, ensuring your Malibu runs smoothly.

How urgent is it to address the oil leak in my 2020 Chevrolet Malibu?

Addressing an oil leak in your 2020 Chevrolet Malibu is not just a matter of routine maintenance; it is a critical safety concern that demands immediate attention. An oil leak can lead to a significant loss of engine oil, which compromises the lubrication necessary for smooth engine operation. This lack of lubrication can result in increased friction among engine components, leading to premature wear and potential catastrophic engine failure. Moreover, an oil leak can cause the engine to overheat, as the oil plays a vital role in regulating temperature. Overheating can severely damage engine parts and may even render your vehicle inoperable. Additionally, the presence of oil on hot engine components poses a fire hazard, creating a dangerous situation for you and others on the road. By promptly addressing any signs of an oil leak, you not only protect your vehicle's performance and longevity but also ensure your safety and that of your passengers. Therefore, if you notice any oil leaks, it is crucial to take action immediately to prevent further damage and maintain the safe operation of your Chevrolet Malibu.

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