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      01-25-2010, 10:41 PM   #5
AlanAZ
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Drives: E90 325i sport manual
Join Date: Aug 2009
Location: Scottsdale, AZ

Posts: 795
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From Redline's website:

Differentials: 75W90
2002 on with multi-disk limited slip: 75W140

I'm running Redline 75w90 in mine. Took about 1.2 qt. There's no drain plug, you'll need a gear oil pump to drain and fill, and flexible hose to get to the bottom. I measured how much came out of mine, and needed to change hoses to get the last half a quart. The factory puts in the plug tight, and it got a bit mushed when removing, so I'm glad I had a new one to replace it with (thanks Tischer!)

Last edited by AlanAZ; 01-25-2010 at 10:51 PM.
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