The short answer is no, you should not put 5w30 oil in a subaru that requires 0w20 oil Subaru engines require specific types of oil depending on the model and year Using the wrong oil viscosity can potentially cause engine damage and negatively impact the vehicle's performance.
The Difference Between 0W-20 vs 5W-20 Engine Oil
As long as your oil consumption is close to nil, you don't really need to move to a heavier oil
But over thousands of vehicles it might be a significant impact in fuel and emissions.
This single difference is the source of all the potential benefits and drawbacks. Understanding the difference between these viscosity grades. A lot of subaru owners wonder if they really need to follow the oil weight listed on the oil cap or if synthetic oil makes any real difference Some are told that thicker oil gives better protection.
Subaru made a significant change for 2025 Using the wrong oil viscosity can potentially cause engine damage and negatively impact. I need to do an oil change but can't afford some quarts of. Find the right engine oil for your subaru
Our complete guide covers oil types, recommendations to keep your subaru running strong.