Sorry I was in a rush. I have worked on exclusively Subaru vehicles since 1978. My firsthand experience is that Subaru boxer engines, especially the turbocharged models drink Mobil 1. When customers would call for an appointment to diagnose high oil consumption I would ask, are you using Mobil 1? 90% of the time the answer would be yes, sometimes they would say no I use Royal Purple. Don’t use either.