Hey guys, I'm in between oil changes and need to add a bit of oil. After some searching, seems like the 2 go-to oils are either BMW 5w-30, or Mobil 0w-40. Is there any reason to go with one over the other? At my recent Inspection I, my indy shop put BMW oil in there so I would assume the safe bet is to go with BMW 5w-30. Any thoughts?
Also, I'm ordering from ECS so if anyone knows of a better place, please let me know!