Why Does My 2013 Subaru Burn Oil? Find Out The Reasons And Effective Solutions Here!

As a Subaru owner, noticing that your car is burning oil can be a cause for concern. You may wonder if there is something wrong with the engine or if it is a common issue in Subarus. In this article, we will answer the question "why does my 2013 Subaru burn oil?" and provide effective solutions to fix the issue.

What Causes Oil Burning in Subarus?

Oil burning occurs when the engine consumes oil at a quicker rate than it can be replaced. Consequently, the oil level drops, and the engine loses its lubricating properties. This can lead to increased friction between the moving parts and eventual engine damage.

Several factors can contribute to oil burning in Subarus. One of the most common causes is worn out piston rings. Piston rings are responsible for preventing oil from seeping into the combustion chamber. When they wear out, oil can pass through and burn up, causing the engine to consume more oil.

Another factor is the PCV (positive crankcase ventilation) valve. When the PCV valve fails, it causes excess pressure in the crankcase, which can force oil into the combustion chamber. A dirty air filter can also contribute to oil burning since it restricts airflow, causing the engine to work harder and consume more oil.

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Why is Oil Burning More Common in the 2013 Subaru?

Many Subaru owners have reported oil burning issues with their 2013 models. The primary reason for this is the design of the piston rings. The 2013 Subaru models use thinner oil rings than previous models. While thinner oil rings can provide better fuel efficiency, they are more prone to wear and tear. This can lead to increased oil consumption and eventually, engine damage.

How to Prevent or Reduce Oil Burning in Subarus?

Routine maintenance is crucial in preventing oil burning in Subarus. Here are a few tips to keep your engine running efficiently:

  • Check your oil levels regularly and top up when necessary.
  • Use high-quality motor oil that is suitable for your engine.
  • Change your oil and oil filter at the recommended intervals.
  • Replace your PCV valve and air filter regularly.

What are the Most Effective Solutions to Fix Oil Burning in Subarus?

If you have noticed that your 2013 Subaru is burning oil, don’t ignore the issue. Here are some solutions to consider:

  1. Piston Ring Replacement – Replacing the piston rings is the most effective solution for fixing oil burning caused by worn out rings. This can be a costly repair, but it is necessary to prevent engine damage.

  2. PCV Valve Replacement – If the PCV valve is the culprit, replacing it can solve the problem. This is a relatively inexpensive repair that can be done quickly.

  3. Engine Rebuild – If the oil burning has caused significant engine damage, a complete engine rebuild may be necessary. This can be a costly repair, but it will give you a fresh start with a new engine.

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Experiences of Subaru Owners

Many Subaru owners have experienced oil burning issues with their 2013 models. Some have undergone repairs and found that the issues were resolved, while others continue to struggle with oil burning. It is important to remember that preventative maintenance is key to keeping your Subaru running smoothly.


Q: Can oil burning be fixed with an oil additive?
A: While oil additives can help reduce oil consumption, they are not a permanent solution. It is best to address the root cause of oil burning and focus on preventative maintenance.

Q: Is oil burning covered under warranty?
A: Oil burning may be covered under warranty, but it depends on the specific terms of your warranty. It is best to check with your Subaru dealer to see if your warranty covers this issue.

Q: Can I continue to drive my Subaru if it is burning oil?
A: It is not recommended to drive your Subaru if it is burning oil. This can lead to engine damage and potentially dangerous situations on the road.

Summing it Up

In summary, oil burning in Subarus can be caused by worn out piston rings, a failed PCV valve, and a dirty air filter. The 2013 Subaru models are more prone to oil burning due to the design of the piston rings. Preventative maintenance is crucial in reducing oil burning, and effective solutions include replacing piston rings, the PCV valve, or rebuilding the engine. Remember to check your oil frequently and perform preventative maintenance to keep your Subaru running smoothly for years to come.

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Billy Covington

With a passion for all things automotive, Billy is our go-to expert on Subaru performance upgrades and modifications. He's been featured in several car magazines and blogs, and his extensive knowledge and expertise make him a valuable member of our team. When he's not working on cars, he enjoys playing guitar and writing music.

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