Discussion: It's not the BB, it's your ...

It's not the BB, it's your knees.

I need advice how to lubricate it whichever it is.

If it's creaking, then either the bearings are on their way out, or they may just be a bit loose.
BBs are a minefield of different standards and types.

Worst case scenario with a creak is that hte BB shell in the frame has cracked or something. But the BB itself is the most likely candidate.

Thanks. Given I spent 350 quid on it 3 months ago (which I thought included replacing the BB) I am now taking it back to the shop next week. My knees are the one part of my legs which still seem trouble free.