E46Fanatics - View Single Post - Changing diff fluid. Oem or not?
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Old 05-28-2012, 11:52 PM   #3
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Join Date: Aug 2010
Location: Orange County, CA
Posts: 4,394
My Ride: 05 330ci
non-m open's use 75-90 i use that weight with redline and have no complaints always feels good putting new fluid in. don't go oem fluid its pointless and has no benefit .. it comes down to if you want to put in redline or RP i put redline in every place i could. you should try out putting RP in the diff and redline in the tranny I'm sure you will be happy any which way
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