I use rotella 5-40 in mine. It's really cheap for a full synthetic and I saw less oil consumption after switching. It's intended for diesel engines but I haven't seen any negative effects after using it for 60k miles. I usually change it around 4k miles.
I use Rotella 10-40w Diesel oil. works great.
I used Shell Rotella T6 5w-40 for a while (not cat AND Sohn installed) and it was fine.
I run Brotella T6 5-40. 22.50 a gallon from amazon. Fantastic Stuff.
If you look at the forums there’s tons of information on this. The rotella T6 5w40 is considered to be the best oil for the EJ hands down.
I run 15W-40 Shell [B]Rotella in my Volvo because it's an old turbo car and the enthusiast community has had success with it.
These days I do use T6 because I know the winters in south Texas aren't cold enough to worry about running anything lighter.
People like rotella because it’s a high zinc oil and subarus just like high zinc.
I run the Rottela 15w40 in my stock 05 Subaru Legacy GT (EJ255) and my mk4 supra turbo. Haven't had issues with the cats on the Subie, I do plan to remove them tho
Rotella 15W-40. I put that shit in everything. My Yukon, my Fit, and all 3 motorcycles. It’s legit.
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