Car just hit ten thousand miles and I changed my oil for the third time and it came out rather dirty. Photo is of some oil I retained in case I decide to have it sampled. Only 4 thousand miles and about 5 months on this oil. Seems really dirty, especially given the factory recommended change...

Hi I have my third oil service due on 2015 mini cooper d 39600 miles. The first one was around 8000 miles and they just changed the oil. The second one had all the filters replaced around 25000 miles. Do I need to get all the filters replaced every time now or can I get away with the basic oil...