Please boss what type of oil do you use for your N54 engine and transmission ? Thanks

I am on my 3rd BMW and I can tell you they are well built and are really fun to drive. my current car is a twin turbo charged 2007 335i.
i source most of my parts from ladipo market and they are not as expensive as a lot of people claim. I work on my cars myself, once in a while i invite my mechanic to come and assist if the work requires heavy lifting or getting dirty. I can boldly tell you that i am yet to meet a good BMW mechanic that is familiar with the e90 platform. I am in Ibadan BTW
I am not trying to scare you but you should know what you are getting into if you decide to buy a e90 BMW.