I will have to check on the Redline oils I used, but I believe that it is D4 in the transmission, and 75W90 in the diff. I just used the recommended oils from the redline web site. I have to say after putting them in my gas mileage improved, and the shift feel is a lot smoother. I will be putting redline oil in the engine next oil change!!!!
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2020 X5 M40i, and 2017 340i M Performance
Previously owned
2009 128i, 2004 X3, 2008 128i, 2007 X5, 2012 328i, 2015 X3 35i, 2015 228i
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