You know I can “restore” it again, right?
I clearly explained my reasons to test another oil.
Absolutely no reason to avoid Subaru. I currently own two and have had at least one in my fleet since the early 80’s. Most taken over 200k miles on just routine maintenance.
You had great results with one oil so you want to see if another can replicate those results? The results that are already satisfactory? After trying basically all high quality oils? Makes a ton of sense. But your money and your car. Good luck.
How many head gaskets and control arms have you been through?