Trust me. It is normal. It is the soot and carbon that cause the oil to turn black straight away. It shows the oil is doing its job.
2012 BMW M135i | 8AT | Quaife LSD | ER catted DP | Solid rear subframe bushes | Bilstein B14 | M3 Front arms | H&R sway bars | BBK | Flash tuned | ER CP |