Engine oil Eneos or OEM Subaru

I use only Eneos 0w20.

I normally use Mobil 1, but did experiment with a JDM brand called ENEOS. The engine seemed to run smoother with that engine than other brands I've tried before.

Eneos oil. Japanese full synthetic. Use it on my 96 accord. Good stuff.

Well, some manufacturers do have way shorter oil change intervals than Euro manufacturers. The Subaru severe driving interval is 3000miles/6 months, and I do lots of short trips in a desert climate so I usually try to be around 3-4000 to stay on the safe side for warranty and whatnot.

Eneos 5w-30! Car runs like a dream

Super happy with the guys at PIA, and they use Eneos 5w40.

My tuner recommended Eneos 5w40

Eneos 5w-30 full synth for my 06 WRX. It has a high zinc content.

I have exclusively used Eneos 0w-20 in this car - the non-Sustina version. This past oil change, I started using Eneos Racing Street 0w-20 as they're phasing out the OG 0w-20.

Both have worked very similarly for me. No issues with anything other than E85 dilution when I'm running it.

Having had multiple Subarus that leak oil like crazy (they all do when they get old) the leaks are most likely too much for the stop leak additive to fix anyway.