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      06-29-2013, 01:55 PM   #90
phozenstone
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Drives: 2015 535i X-Drive
Join Date: Apr 2007
Location: NY

iTrader: (73)

Perhaps you underfilled the diff causing the fluid to burn and become dark? I used redline as well 3K miles ago (50K miles) on both front and rear but haven't checked the fluid since. I was planning to change again at 75K.
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Current: 2015 535i X-Drive / Dark Graphite II / Black Dakota Leather
Retired: 2007 328xi / Montego Blue / Black Novillo Leather