2018 Toyota Tacoma Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2018 Toyota Tacoma and How to Address Them 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 2018 Toyota Tacoma 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 Toyota Tacoma 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 Toyota Tacoma?

When diagnosing an oil leak in your 2018 Toyota Tacoma, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by locating the leak; inspect the area beneath your vehicle for any visible oil spots, which can help pinpoint the source. Next, turn your attention to the oil pan, as cracks or loose bolts here are common culprits. Ensure the oil filter is securely fastened and free from damage, as a faulty filter can also lead to leaks. Don’t overlook the oil drain plug; a loose or worn plug can contribute to oil loss. Additionally, examine the gaskets and seals around the oil pan and filter for signs of wear, replacing any that appear compromised. Regularly monitoring your oil levels will help you track any significant drops that may indicate a persistent leak. If these steps do not resolve the issue, seeking professional assistance is advisable to ensure a thorough inspection and repair. By following this diagnostic approach, you can effectively identify and address the oil leak in your Tacoma, potentially saving time and money on repairs.

What are the common causes of oil leaks in a 2018 Toyota Tacoma?

When dealing with oil leaks in a 2018 Toyota Tacoma, 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. Additionally, a faulty or improperly installed oil filter can also result in oil escaping from the engine, making it essential to ensure that the filter is correctly fitted. Another area to inspect is the drain plug; if it is loose or damaged, it can cause oil to leak from the oil pan. Furthermore, the valve cover gasket is another potential source of leaks, as it can wear out and allow oil to seep from the top of the engine. Lastly, don’t overlook the oil cooler lines, as leaks in these lines can contribute to oil loss as well. By regularly checking these components and addressing any issues promptly, you can maintain your Tacoma's performance and prevent further engine damage.

How urgent is it to address an oil leak in a 2018 Toyota Tacoma?

When dealing with an oil leak in your 2018 Toyota Tacoma, understanding the urgency of the situation is crucial for both your vehicle's health and your safety. Regularly monitoring your oil levels is the first step; a significant drop can indicate a serious leak that requires immediate attention. Ignoring this issue can lead to severe engine damage, which not only affects performance but can also result in costly repairs down the line. Additionally, oil leaks pose environmental risks, as they can contaminate soil and water sources, making prompt action essential. From a safety perspective, oil spills can create hazardous conditions, especially in driveways or parking lots, increasing the risk of slips and falls. Therefore, while the urgency may vary based on the leak's severity, it is always advisable to address any signs of an oil leak as soon as possible to safeguard your vehicle, the environment, and your safety. Regular checks and timely repairs will help maintain the longevity and reliability of your Tacoma.

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