Engine oil LIQUI MOLY or Shell

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.

We used to commonly use Rotella in our heavily modified Mazdaspeed 3/6's to combat the same issue. It worked great and the only problem we ever had was with what we called the "black death".

I went with Liqui Moly 2332 Leichtlauf High Tech 5W-40 which meets 502 spec. This. German-made. 502 spec. You can get a jug of the stuff on Amazon for a good price. Been using it for over a year now.

LiquiMoly Leichtlauf High Tech 5W40 Easy DIY kits sold online for ~$70 delivered including VW filter and drain plug, has a good reputation in the VAG community

I just did my first oil change at 1k miles. I went with Liqui Moly 2332 Leichtlauf High Tech 5W-40 which meets 502 spec.

I've been using the Liqui-Moly 5w-40 Leichtlauf High Tech since 2500 miles.

You want to know how your oil is doing? Send it to Blackstone labs for testing. Cost $35 but worth it in my opinion. I send my 8k oil (Liquy Moly, from my CC) and it was still very good!

Rotella T6 5W40