Solving the Subaru Ascent Premium Engine Oil Consumption Issue

The Subaru Ascent Premium has earned a reputation as a reliable and versatile SUV, but like any vehicle, it’s not without its quirks. One of the most talked-about issues among owners is excessive engine oil consumption. This problem can be frustrating and, if left unaddressed, may lead to costly repairs or even engine damage. In this blog post, we’ll break down the causes of this issue, its impact on your vehicle, and actionable steps to prevent or resolve it.

Understanding the Oil Consumption Problem

Excessive oil consumption occurs when your engine burns through oil faster than it should. For Subaru Ascent Premium owners, this issue has been particularly noticeable in models produced between 2019 and 2021. Drivers have reported needing to top off their oil between scheduled changes, sometimes as frequently as every 1,000 miles.

This problem isn’t just an inconvenience—it can have serious implications for your vehicle’s performance and longevity. Low oil levels can lead to increased friction and heat within the engine, potentially causing premature wear on critical components like pistons, rings, and bearings.

Common Causes of Excessive Oil Consumption

1. Faulty Piston Rings
   One of the primary culprits behind excessive oil consumption is worn or improperly seated piston rings. These rings are designed to create a seal between the piston and cylinder wall, preventing oil from entering the combustion chamber. When they fail, oil can leak into the combustion chamber and burn off, leading to lower oil levels.

   
   

2. Valve Seal Issues
   Valve seals prevent oil from leaking into the combustion chamber through the intake and exhaust valves. Over time, these seals can degrade, allowing oil to seep into the engine and burn off.

   
   

3. PCV System Malfunctions
   The Positive Crankcase Ventilation (PCV) system is responsible for managing pressure and emissions within the engine. A malfunctioning PCV valve can cause excessive oil consumption by allowing oil to be drawn into the combustion chamber.

   
   

4. Manufacturing Defects
   Some Subaru Ascent Premium models may have been built with manufacturing defects that contribute to oil consumption issues. These defects can include improperly machined engine components or subpar materials.

   
   

How to Address the Issue

If you’re experiencing excessive oil consumption in your Subaru Ascent Premium, here are some steps you can take:

1. Monitor Oil Levels Regularly
   Check your oil level at least once a month or before long trips. If you notice a significant drop between oil changes, it’s time to investigate further.

   
   

2. Visit a Subaru Dealership
   Subaru has acknowledged the oil consumption issue and may offer repairs or replacements under warranty for affected models. Schedule an appointment with your local dealership to have your vehicle inspected.

   
   

3. Consider an Engine Flush
   In some cases, an engine flush can help remove sludge and deposits that may be contributing to oil consumption. However, this should only be done under the guidance of a professional mechanic.

   
   

4. Upgrade to High-Quality Oil
   Switching to a high-quality synthetic oil with the correct viscosity can help reduce oil consumption and improve engine performance.

   
   

Preventative Measures

To minimize the risk of excessive oil consumption in your Subaru Ascent Premium, follow these tips:

• Stick to Regular Maintenance
  Adhere to Subaru’s recommended maintenance schedule, including timely oil changes and inspections.

  
  

• Use Genuine Subaru Parts
  When replacing components like the PCV valve or valve seals, opt for genuine Subaru parts to ensure compatibility and reliability.

  
  

• Drive Responsibly
  Avoid aggressive driving habits, such as rapid acceleration and hard braking, which can put additional strain on your engine.

  
  

• Stay Informed
  Keep an eye on recalls or service bulletins related to your vehicle. Subaru has issued updates and fixes for certain models, and staying informed can save you time and money.

  
  

Final Thoughts

While the Subaru Ascent Premium’s oil consumption issue can be concerning, it’s not insurmountable. By understanding the causes and taking proactive steps, you can keep your vehicle running smoothly for years to come. If you suspect your Ascent is affected, don’t hesitate to consult a Subaru dealership or trusted mechanic. With the right care and attention, you can enjoy all the benefits of this capable SUV without the headache of excessive oil consumption.

Drive safe, and happy motoring!

This blog post provides a comprehensive yet accessible guide to understanding and addressing the Subaru Ascent Premium’s oil consumption issue. It’s structured to engage readers while offering actionable advice to help them maintain their vehicle’s performance and reliability.