Fluid - Differential

Approved Final Drive Oils for Front and Rear Axle Final Drives
With and Without Limited Slip or Viscous Coupling

All models are factory filled with a synthetic final drive oil.

Limited Slip Differentials
BMW Synthetic Final Drive Oil (SAF-XJ) (with multi-plate limited-slip differential)

Non Limited Slip Differentials
BMW Synthetic Final Drive Oil (SAF-XO) (without multi-plate limited-slip differential, or with viscous differential lock [325iX/iXA])

Motorsport vehicles
All E46 M3, E60 M5, E63/E64 M6 and E85 M roadster and M coupe require SAF-XJ Fluid

X6: The DPC differential contains 3 separate chambers, with a left and right gear unit adjacent to the center main differential.
Component Left DPC gear unit
Lubricant SAF-XJ
Fill quantity 0.54 liters
Replacement interval long-term*

Center Differential
Lubricant: SAF-XO
Fill quantity 1.0 liters
Replacement interval long-term*

Right DPC gear unit
Lubricant SAF-XJ
Fill quantity 0.58 liters
Replacement interval long-term*

* "Long-term" means that no replacement is needed unless specified for a repair.