Car on SORN don't forget to change oil? What is this all about or am I missing something!
It’s not change the oil, but drain the oil from the sump. On some M3W’s oil can seep past the non return valve into the sump, on start up the oil is then spewed out of the air filter all down the front of the engine. So it is recommended until you know your engine to drain the oil from the engine and put it back in the tank when the car has sat for a long period.
