Why do subarus use so much oil?
Subaru vehicles are known for their reliable performance and all-wheel-drive capabilities, but one common issue that many Subaru owners face is excessive oil consumption. This can be a frustrating problem, as it requires frequent oil top-ups and can be a sign of a more serious underlying issue. In this article, we'll explore the reasons why Subarus tend to use more oil than other car models.
Causes of Excessive Oil Consumption in Subarus
There are several factors that can contribute to the high oil consumption in Subaru vehicles:
- Boxer Engine Design - Subarus are equipped with a unique "boxer" engine design, where the cylinders are horizontally opposed. This layout can lead to increased oil consumption due to the engine's complex internal structure and the way the pistons move.
- Piston Ring Design - The piston rings in Subaru engines are designed to be thinner and more flexible, which can allow more oil to pass through and be burned during combustion. This is a trade-off for improved fuel efficiency and performance.li>
- Turbochargers - Many Subaru models, especially the performance-oriented variants, come equipped with turbochargers. Turbochargers can increase oil consumption by allowing more oil to be drawn into the engine during high-speed operation.
- Mileage and Age - As Subaru engines accumulate more miles, the piston rings and other components can wear down, leading to increased oil consumption over time. Older Subaru models tend to have higher oil consumption rates.li>
It's important to note that while high oil consumption is a common issue with Subarus, the severity can vary depending on the specific model, engine, and driving conditions. Regular maintenance and monitoring of oil levels can help mitigate the problem.
Addressing Excessive Oil Consumption
If you own a Subaru and are experiencing excessive oil consumption, there are a few steps you can take to address the issue:
- Check Oil Levels Regularly - Make a habit of checking your oil level at least once a month, or more frequently if you notice the level dropping quickly. Top up the oil as needed to maintain the proper level.li>
- Use the Recommended Oil Type - Consult your owner's manual and use the oil type and viscosity recommended by Subaru. Using the wrong oil can exacerbate oil consumption issues.
- Consider an Oil Consumption Test - If the oil consumption is severe, your Subaru dealer may be able to perform an oil consumption test to determine the root cause and recommend appropriate repairs.
- Seek Professional Assistance - In some cases, excessive oil consumption may require more extensive repairs, such as replacing piston rings or other engine components. It's best to have a qualified Subaru technician diagnose and address the problem.li>
By understanding the reasons behind Subaru's tendency for high oil consumption and taking proactive steps to monitor and address the issue, you can help maintain the health and performance of your Subaru vehicle.
