4.0 Diesel Engine Oil Requirements And Specifications

The BMW recommended motor oil for the diesel powered vehicles with the M57, N47 and N57 is the "low-ash" synthetic Castrol SLX Professional OE SAE 5W-30. This oil is available through BMW via the virtual warehouse with Castrol under part number 07 51 0 037 195 (1 qt. bottles, quantity 6).