Can I put 5W30 instead of 0w20 on my Subaru?
The short answer is no, you should not put 5W30 motor oil in a Subaru that requires 0W20 oil. Using the wrong oil viscosity can potentially cause engine damage and negatively impact your vehicle's performance and fuel efficiency. Let's dive into the details on why it's important to use the recommended oil for your Subaru.
Understanding Oil Viscosity Ratings
Motor oil viscosity is indicated by a two-part number, such as 0W20 or 5W30. The first number (before the W) refers to the oil's cold weather viscosity, while the second number indicates the oil's viscosity at normal operating temperatures. Lower numbers mean the oil flows more easily, which is important for cold starts and fuel efficiency.
Subarus typically require 0W20 oil, which is a very thin, low-viscosity oil designed to improve fuel economy and provide better cold weather performance. Using a thicker 5W30 oil instead could lead to increased engine wear, reduced fuel efficiency, and potential damage to sensitive engine components.
Risks of Using the Wrong Oil Viscosity
- Increased Engine Wear: Thicker 5W30 oil may not flow as easily through the engine, leading to increased friction and wear on critical components like bearings and pistons.
- Reduced Fuel Efficiency: The extra drag from the thicker oil can negatively impact your Subaru's fuel economy, costing you more at the pump.
- Potential Engine Damage: In extreme cases, using the wrong oil viscosity can cause serious issues like oil starvation, increased oil consumption, and even engine failure.
It's important to always refer to your Subaru's owner's manual and use the recommended 0W20 oil to ensure optimal engine performance, fuel efficiency, and longevity.
Conclusion
In summary, it is not recommended to use 5W30 motor oil in a Subaru that requires 0W20. Doing so can lead to increased engine wear, reduced fuel efficiency, and potential engine damage. Always follow the manufacturer's recommendations for the proper oil viscosity to keep your Subaru running at its best.
