Review on Synthetic motor oil MOBIL SUPER 3000 X1 5W-40, 208L by Mateusz Drabarczyk ᠌

I drove 10,000 km on this oil, after the last change I drove 2500 km. Yesterday I opened the engine to replace the timing chains. The engine is very dirty, as if painted with drying oil. In places, blackness from soot. Mileage on the car is only 62,000 km. Before using this oil, this was not the case, the engine was always clean. Today, salt, throw out this bodyagu and forever forget this "brand". I hope another oil in two or three changes will wash away these deposits. I would not like to touch and wash the engine manually.