Engine oil Mobil or Eneos

I have used Mobil one for 25yrs and never had an engine problem. I have a 1978 Alfa that uses Mobil one for most of it's life when the oil was released and the engine is perfect.

For oil changes, use BMW, Mahle, or Mann filters and any LL-01 approved oil. Mobil1 0w40 is what I've been using and never had any problem.

As mentioned above, you should consider Mobil 0w40 oil. I've used it for 4 winters now, driving in very similar conditions to what you're seeing, and the oil basically looks new every time I change it at 7000 miles.

I've had pretty great results from Eneos Sustina in my 2017 3.

I'd recommend changing the oil to a good brand 0W-40, Mobil or Shell. Replace the oil filter as well.

I ran Mobil 1 ESP 5w40 in my 2.0 TDI for 80k miles and it was great. However it was discountinued so I switched to the Mobil 1 euro spec 5w30 ESP and continued to 120k miles and shortly after switching it gained nearly 2mpg. Both oils remained steady on the dipstick so if it used oil it was very little.

I used light 5w-30 Edge and 0w-30 Mobil 1 SL in my APR 2.0T 6M and had ultra low wear.... With all the advantages of light oil.

I've had issues with Mobil1 0w-40 oil, even though it "meets the spec", and switching to a different brand resulted in less timing chain and valve train noise, and quieter cold starts, which typically means less wear, so I switched.

If it's a stock engine use 5-30. I use Mobil 1 full synthetic 5-30 in my b18c and it's been good for thousands of miles.

Use a good quality synthetic engine oil; I use Eneos.