Engine oil Mannol or OEM BMW

I recommend checking your oil level at 3000 miles because some vehicles burn oil. BMW and Audi especially, at 1500~2000miles I will top off.

For the UK, cheap and good: Mannol Fully Bi-Synthetic Engine Oil Longlife 3 5w30

The car runs well, no problems starting up, no significant oil burning.

I use Mannol 7715 on my 3.0tdi

I use the mannol 5w30, it might be cheap but it's still just as slippy

BMW used to recommend you changing oil basically every time you blink, back when consumers paid for 100% of all maintenance. But in order to be more competitive, they began offering 3 year included free maintenance on all new vehicles.

Genuinely speaking, it's actually not bad oil at all. Apparently manufactured in Germany, meets or exceeds the OEM spec for my cars. In my 350Z which likes to drink oil, I change it using Fuchs Titan Race Pro S 5W-40 but I keep a bottle of this (also 5W-40) in the boot for top ups.

I run Mannol 5w30 for Japanese brands on my 202k km d16

Works fine but I might change to a slightly thicker one

Looks to be exact same procedure as on my e46. Perhaps the easiest oil change I've ever done. In fact, I've used the same brand and spec oil too, which is an BMW LL-01.

Based on extensive testing, BMW has approved only certain engine oils. Use only approved "BMW High Performance Synthetic Oil." If you are unable to obtain "BMW High Performance Synthetic Oil," you can add small amounts of synthetic oil in between oil changes.