I have done two drain/fills using Amsoil since we purchased in 2004. I use Amsoil in all my engines, diffs, transmissions, air compressors and other things that have moving parts. Have done since the early 90's.

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2021 X5 xDrive40i
2015 X5 xDrive35i MSport
(Traded) 2013 X5 xDrive35i