E39 Rear Axle Oil

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ah-singh

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Dear All, Has anyone encountered that after changing the rear axle oil, the axle becomes noisy after a few months ?? Please advice.... Is there any recommended grade of such oil ?
 
Recommended grade of oil is 75W-90. Many actually recommended the brand Redline.
 
For rear axle, you must use the GL5 spec oil. Do not use GL4 spec oil.
 
anyone encountered the problem where the axle gets noisy after a few months of oil change ?
 
Must say that the rear differential oil is life time not sure how far its true. Cheers
 
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