2018 Kia Forte Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2018 Kia Forte and How to Address Them Effectively

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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 2018 Kia Forte 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 2018 Kia Forte 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.

An oil leak may be noted on the ground where the vehicle is parked. However, many vehicles have plastic trays underneath the engine that may catch leaking oil and conceal the leak. In such cases, a low oil level, a burning oil smell, or even smoke from oil burning in the engine bay may be noted.

»MORE: Signs of a bad oil pan gasket

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 2018 Kia Forte?

When diagnosing an oil leak in your 2018 Kia Forte, it's crucial to take a methodical approach that starts with the most straightforward checks. Begin by inspecting the area under your vehicle for any visible signs of oil, such as drips or puddles, which can help pinpoint the leak's origin. Next, examine the oil pan for any cracks or damage, as this is a common source of leaks. Ensure that the oil filter is properly secured, as a loose or faulty filter can also lead to oil escaping. Don't forget to check the oil drain plug; it should be tight and free from leaks. Additionally, inspect the gaskets and seals around the engine, as wear in these components can contribute to oil loss. Regularly monitoring your oil levels is essential, as a significant decrease can indicate a leak that requires attention. If these initial checks do not reveal the source of the leak or if the issue continues, it may be necessary to consult a professional mechanic for a comprehensive inspection and repair. By following this structured diagnostic approach, you can effectively identify and resolve the oil leak in your Kia Forte.

What are the common causes of oil leaks in a 2018 Kia Forte?

When dealing with oil leaks in a 2018 Kia Forte, it's crucial to understand the common problems that may arise. One frequent culprit is the oil pan gasket, which can wear out over time, leading to leaks that can compromise engine performance. Additionally, a faulty or improperly installed oil filter can also be a source of leaks, making it essential to ensure that the filter is correctly fitted during oil changes. Another area to inspect is the valve cover gasket, as wear and tear can result in oil seeping out. Furthermore, issues with the oil drain plug, such as looseness or damage, can lead to significant leaks if not addressed. Lastly, leaks from the engine oil cooler can also contribute to oil loss. By being aware of these potential issues, DIYers can take proactive steps to inspect and repair their vehicle, ensuring it runs smoothly and efficiently. Regular maintenance checks are key to catching these problems early and preventing further damage to the engine.

How urgent is it to address the oil leak in my 2018 Kia Forte?

Addressing an oil leak in your 2018 Kia Forte is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. Ignoring an oil leak can lead to severe engine damage, as the oil is vital for lubricating moving parts and preventing overheating. A compromised engine can result in costly repairs that far exceed the expense of fixing the leak itself. Moreover, an oil leak poses safety risks, as it can create slippery surfaces on the road, increasing the likelihood of accidents. By addressing the leak promptly, you not only safeguard your vehicle's performance but also ensure your safety and that of others on the road. Therefore, it is essential to take action as soon as you notice any signs of an oil leak to maintain the longevity and reliability of your Kia Forte.

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