I did mine a while back with the LiquiMoly GL5 75W-90 gear oil. Haven't run into any issues in the 33k+ miles since.
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2013 F30 335i RWD ZF Melbourne Red
~Remus Sport Axleback~VRSF Chargepipe~VRSF Catless Downpipe~GPlus FMIC~HR Sport Springs~Active Autowerke OBD Flash Tune Stage 2~
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