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Power Steering Fluid

2K views 1 reply 2 participants last post by  kowached 
My E39 calls for ATF to be used in the PS reservoir, I've been using Valvoline Synpower ATF.

Your E32 may call for a Pentosin product called CHF 7.1, or the synthetic version called CHF 11S.

Check the manual, or look at the cap, mine reservoir cap has ATF written on it.
 
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