6.0 Operating Fluids - Additives

Today's modern oils and fluids for engines, transmissions, differentials or other in-car-systems, as well as premium grade fuels, are already formulated by the manufacturer and/or BMW NA with sophisticated additive packages designed to reduce sludge build-up, keep contaminants in suspension and maintain viscosity of the oil. Additional additives can compromise the manufacturer's or BMW NA's developed formulation.

BMW NA does not endorse or recommend the use of engine oil, fuel, differential oil, transmission oil additives or the use of other additives to any operating fluids, beyond the additives already included in the operating fluid manufacturer's additive package.

The use of engine crankcase flushing detergent chemicals and/or automated crankcase flushing machines is not a BMW recommended procedure and is thus prohibited under the terms of the BMW New Vehicle/SAV Limited Warranty or any other BMW NA administered programs.

Since the inclusion of such additional additives may lead to component damage or compromise the longevity or function of BMW components, warranty coverage may be affected on any component where the failure is likely caused by unapproved oils, operating fluids or add-on additives.