4.0 Diesel Engine Oil Requirements and Specifications
The BMW approved motor oil for the diesel powered 335d and the X5 xDrive35d 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. bottle).
Orders for this oil should be placed at the same time as your regular orders for BMW High Performance synthetic motor oil (gasoline engines) to achieve the minimum order quantity level.
Note. This oil is packaged 6 bottles to one case; therefore, the oil must be ordered in increments of 6 quarts. Use only "low-ash" synthetic oils such as Castrol SLX Professional OE SAE 5W-30. Oil information also appears on a label in the engine compartment as a reminder.
A copy of the Castrol SLX Professional OE SAE5W-30 oil bottle label is below.
