Originally Posted by CraigUK
Totally different car and engine but I used to own an E46 325i, bought it with around 10K on the clock and it used to drink a fair bit of oil. After another 20K miles things settled down and it didn't drink at all after that.
That, sort of, corroborates what the BMW service guy told me - he said that 1/4 of the scale in 1k miles was nothing to worry about and that the consumption should progressively decrease and then improve even further after the first oil change.
Either way, it's something I'll be monitoring on a daily basis - I just knew that I'd miss the zero oil burn and the reassurance of a dipstick from my old E92 330d and F10 535d
Mind you, that's completely offset by the silky smoothness and performance of this amazing 640i.