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      01-29-2019, 07:02 AM   #2
Bilbofraggins
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Drives: 2013 X6M, 2019 X3 M40I
Join Date: Feb 2016
Location: North of the Wall

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I pretty sure diffs are 75/85 GL4 Hypoid... it is for a 2015...never seen 75/140 listed...I have also seen 75/90 GL5 listed as the spec on mine...Next time I will pick one that says GL4/5 compatible

Although I used ZF tranny fluid till now... next time it’s Ravenol...which is the brand I am now using for the transfer case and diffs...

For info...If you match the spec... with a brand name alternative you can save a lot... stepping beyond the ZF smoke and mirrors.

You may find this useful on tranny fluid specs...which may or maybe not relevant to your vehicle: https://www.audiworld.com/forums/a8-...truth-2882676/

Last edited by Bilbofraggins; 01-29-2019 at 09:26 AM..
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