babymerc Posted May 6, 2018 Share Posted May 6, 2018 Could anyone recommend an oil type/make for an open bmw diff (2015) please. Many thanks Link to comment Share on other sites More sharing options...
Jim 123 Posted May 6, 2018 Share Posted May 6, 2018 The first fill is Comma Hypoid 80W 90 GL5, for the standard diff Link to comment Share on other sites More sharing options...
Tom_Arundel Posted May 6, 2018 Share Posted May 6, 2018 I use Redline heavy in the sierra diff.... reduces noise and with adjustments is great. Link to comment Share on other sites More sharing options...
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