Check your owner's manual, it will tell you what is recommended for your car or call the service department.
Call your local dealer or service department.
On matters such as this, it always amazes me that, rather than go straight to a source which definitively can afford accurate information, they put the question to the inexperienced masses. I strongly urge you present your question to a Subaru service center or Google it. Why risk your engine to unqualified sources?
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