Subaru Forester Is Leaking Oil

Discovering the Causes of Oil Leaks in Your Subaru Forester 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 Subaru Forester 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 Subaru Forester 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.

Troubleshooting Oil Leaks in a Subaru Forester

When troubleshooting oil leaks in your Subaru Forester, begin with a thorough visual inspection of the engine compartment. Look for any signs of oil droplets or stains, particularly around common leak areas such as the rocker cover gaskets, cam carrier seals, and oil pan drain plugs. Pay close attention to the top of the engine block and the area between the cylinder heads, as these are frequent culprits for leaks. If you notice oil pooling under the vehicle, it’s essential to differentiate it from other fluids like transmission or power steering fluid, as this will guide your next steps. For high-mileage vehicles, especially those around 70,000 miles, be vigilant for slow leaks that may develop over time. If you suspect a more complex issue, such as a leak from the oil separator plate or rear main seal, be prepared for a more involved repair process. Understanding the potential costs associated with these repairs can also help you prioritize your approach, starting with simpler fixes before tackling more complicated issues. By following these steps, you can effectively diagnose and address oil leaks, ensuring your Subaru Forester remains in optimal condition.

How to Address Oil Leaks in a Subaru Forester?

When tackling oil leaks in a Subaru Forester, it's essential to understand the common problems that can arise within the engine system. One of the most frequent issues is the deterioration of gaskets, particularly the rocker cover gaskets and cam carrier seals, which can lead to oil seeping out and creating visible stains in the engine compartment. Additionally, the oil pan drain plug is another area where leaks often occur, especially in older models. It's also important to be aware of the potential for turbocharger oil leaks, which can be particularly damaging if not addressed quickly. These leaks can manifest as oil puddles under the vehicle, so checking the ground beneath your Forester is a crucial step in identifying the source of the problem. If you notice low or foamy power steering fluid, this could indicate a separate issue that requires attention. For more complex leaks, such as those involving the timing chain cover, professional assistance may be necessary, as these repairs can be intricate and costly. By being vigilant and understanding these common failure modes, you can effectively diagnose and address oil leaks, ensuring the longevity and performance of your Subaru Forester.

Why is it Critical to Address Oil Leaks in a Subaru Forester?

Addressing oil leaks in your Subaru Forester is not merely a maintenance task; it is an urgent necessity that can prevent serious repercussions. Neglecting an oil leak can lead to significant engine damage, as insufficient lubrication increases friction among engine components, potentially resulting in costly repairs or even complete engine failure. Moreover, oil leaks pose safety hazards, creating slippery surfaces that can lead to accidents, endangering both the driver and others on the road. Timely intervention ensures that your engine operates efficiently, preserving its performance and fuel economy. Additionally, addressing these leaks promptly can help maintain the resale value of your vehicle, as a well-maintained Subaru Forester is more appealing to potential buyers. Therefore, regular inspections and immediate repairs are essential to safeguard your vehicle's health, performance, and safety, making it imperative to act swiftly when you notice any signs of oil leakage.

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