BMW X3 Service & Repair Manual: General information on final drive oil

BMW X3 Service & Repair Manual / Driveline+Axles / General information on final drive oil

1.0 GENERAL INFORMATION ON FINAL DRIVE OIL

Final Drive oil or hypoid gear lubricant must conform with the following requirements because of the high loads which occur on the profiles of the hypoid gear teeth:

  • Load carrying capacity.
  • Sufficient protection against seizure.
  • Good wear protection.
  • Optimal friction and temperature behavior.
  • Seal compatibility.
  • Aging resistance.

These and other properties are already contained in brand-name hypoid gear lubricants because of the high content of EP additives (EP = extreme pressure).

OIL ADDITIVES

The factory has not approved oil additives for hypoid gear lubricants.

All final drives are designed in such a manner that they do not require any type of oil additives. Any type of additives is fundamentally rejected by the factory. BMW NA cannot accept any liability for follow-up damage resulting from the use of additives.

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