Can I use 5w30 instead of 0w20 Subaru?
The short answer is: it's generally not recommended to use 5W30 motor oil instead of the recommended 0W20 oil in your Subaru. While it may be possible in some cases, it's important to follow the manufacturer's recommendations to ensure your engine's optimal performance and longevity.
Understanding the Differences Between 5W30 and 0W20 Motor Oils
Motor oils are classified by their viscosity, which is a measure of their thickness and flow characteristics. The first number in the oil's designation (e.g., 5W or 0W) refers to the oil's cold-weather viscosity, while the second number (e.g., 30) refers to the oil's hot-weather viscosity.
The 0W20 oil recommended for many Subaru models is a lower-viscosity oil that is designed to flow more easily in cold temperatures, improving fuel efficiency and reducing engine wear during startup. In contrast, 5W30 is a slightly thicker oil that may not flow as readily in cold conditions, but it provides better protection for the engine at higher operating temperatures.
Potential Risks of Using 5W30 Instead of 0W20
Using a 5W30 oil instead of the recommended 0W20 in your Subaru can potentially lead to the following issues:
- Reduced fuel efficiency: The thicker 5W30 oil may increase engine drag, reducing your vehicle's fuel economy.
- Increased engine wear: The 5W30 oil may not flow as easily in cold temperatures, leading to increased wear on engine components during startup and warm-up.
- Decreased engine performance: The thicker oil may not circulate as effectively, potentially reducing the engine's power output and responsiveness.
It's important to note that the specific risks and consequences of using 5W30 instead of 0W20 in your Subaru may vary depending on factors such as the age and condition of your engine, driving conditions, and climate.
Recommendations and Considerations
The best practice is to always use the motor oil specified by the Subaru manufacturer for your particular model and year. This ensures that your engine receives the proper lubrication and protection it needs to perform at its best.
If you're unsure about the recommended oil for your Subaru, you can consult your owner's manual or contact a Subaru dealership or certified mechanic for guidance. They can provide you with the specific oil type and viscosity that is best suited for your vehicle.
What happens if you use 5W30 instead of 20?
The 5W-20, however, will remain a little thinner once you reach operating temperature to help improve fuel economy and flow fast enough to fill the tight tolerances in the engine. Using 5W-30 instead can reduce fuel economy and impede flow throughout the engine.
Can I put 5W30 instead of 0W-20 on my Subaru Outback?
Oil Type & Capacity for Subaru Outback
Like the Crosstrek, the oil for the Subaru Outback needs to be an API classification SN or ILSAC GF-5. Also like the Crosstrek, the Outback engine should be filled with 0W-20 synthetic oil. If synthetic oil isn't available, you can use either 5W-30 or 5W-40 conventional oil.
Can I use 5W-20 instead of 0W-20?
If SAE 0W-20 synthetic oil is not available, SAE 5W-20 conventional oil may be used. However, it must be replaced with SAE 0W-20 synthetic oil at the next oil change.
What engine oil does Subaru recommend?
Most new Subaru vehicles require synthetic oil with a viscosity rating of 0W-20.
What oil can I use instead of 0W-20?
If SAE 0W-20 synthetic oil is not available, SAE 5W-20 conventional oil may be used. However, it must be replaced with SAE 0W-20 synthetic oil at the next oil change.
What is the best oil for a Subaru engine?
Subaru Oil Guide:
| Model | Subaru Oil Required | Capacity |
|---|---|---|
| Subaru Legacy & Outback XT (Turbo) 2020 - 2021 | 0W-20 Synthetic Oil | 4.8 Quarts |
| Subaru WRX 2002 - 2010 | 5W-30 Conventional Oil | 4.4 - 5 Quarts |
| Subaru WRX 2011 - 2020 | 5W-30 Synthetic Oil | 4.4 - 5.4 Quarts |
| Subaru Crosstrek 2013 - 2021 | 0W-20 Synthetic Oil | 4.4 - 5.1 Quarts |
What oil can you use in place of OW-20?
If SAE 0W-20 synthetic oil is not available, SAE 5W-20 conventional oil may be used.
Can I put 5w30 instead of 0W-20?
Using the proper viscosity motor oil will help protect and maintain the performance of your vehicle's engine. Thus, always refer to the manufacturer's recommendation while your vehicle is under warranty. **if you have a car that recommends 0W-20, do not use 5W-30 – back # of vis-grade must match or it is a no-go.
Can I put 5w30 in my Subaru?
5W-30 synthetic motor oil is required for 2011 and newer turbo-charged Subaru vehicles.”
Is there a big difference between 0W-20 and 5W-20 oil?
Both 0W-20 and 5W-20 have similar viscosity at operating temps, with 0W-20 being slightly thinner. The lower viscosity of 0W-20 can provide better fuel economy compared to 5W-20 due to reduced friction and drag on the engine. 0W-20 oils require synthetic base oils and are not conventional oils.
