Owner reviews for engine oil

Mobil 1 0w40 FS , it’s the factory fill for the car and the best choice.

If your interval is 30,000km / 20k mi (2Y) then you should use the higher spec VW 503 / 504 (left page) if you have the 15,000km / 10k mi (1Y) interval then you can use the lower grade VW 501 / 502 oil on the right page.

I use Gulf 5w30 Full Synthetic on my ecoboost. Ran full synthetic in my ST as well. Never had any issues with it.

I run Leichtlauf 5W-40 on my B7 A4 2.0T; just hit \~250K km. Used to run Castrol and Motul but as I started doing my own oil changes, switched to the LiquiMoly stuff. Oil consumption issues gone, no complaints from me.

My 3.0T doesn't seem to care one way or another what gets put into, it all seems to act similar. I have liqui moly molygen 5w40 in it now because...My 5.2 absolutely hates Mobil 1, Castrol Edge and Valvoline Syntec. Burn off/deposit rate of liquid moly molygen or leichtlauf seems to be about half of the other 3 I've tried, so I'm just going to stick with that until I see a reason to change.

for the time being it seems that Q8 Prestige V is even tiny bit better than original BMW oil made by Shell for BMW.

Yes, liqui moly great german quality, can recommend

LiquiMoly Leichtlauf 5W-40. (blue bottle). It’s got great anti friction properties. Using it for past 40K miles. No issues.

I always use Castrol, good quality oil won't hurt the engine and is just slightly more expensive than off-brands.

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.