Engine oil Mobil or Eneos

Exactly. Change the oil pressure switch. I would spend $50 and get an oil pressure test set with gauge and check pressure to be sure. Oil must be synthetic that meets proper spec. 5w-40 mobil1 European does.

I've been using Mobil 1 10w30 regular and now High-Mileage Synthetic for decades and most of the Jeeps life.

There’s been a lot of advancements in oils since the YJ was new. I use Mobil 1 0w40 in mine due to its excellent temperature range and proven endurance.

Mobile 1 full synthetic 0W-20 every 5K. My engine hums like a top.

Oil changes are cheap enough now that Mobil1 ESP 0w-30/5w-30 which is Approved by VW as 507 spec is around $28 per jug at Walmart. I'd change it more frequently and not chance it on the 2015 TDI engines in USA.

CKRA Passat, 164k miles, every 10k miles oil changes since new without negative experience. I did a Blackstone report once and oil looked good. I have used Rowe, Liquimoly, Fuchs and Mobil1 ESP.

Mobil 1 is a fantastic oil.

I have 265k on my 2002 Weekender purchased new. Run Mobil-1 0W-40. No problems with engine but transmission needs TLC.

Mobil-1 5w30 ESP (what most ppl use since it’s cheap but I’ve heard it isn’t the best, was recommended these others by a guy who’s been dealing with/tuning German diesels forever)

I burn 1 qt of Mobile 1 0-40 every 1000 miles.