Quote:
Originally Posted by Ghos7N54
I wanted to revive this thread for one, it has been very informative and helpful. Secondly my cap says use ATF only, so I planned on picking up Castrol ATF, but how can I be sure that ATF is whats currently in the system and not CHF? Just cautious of this since CHF and ATF CANNOT be mixed.
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Unfortunately, you can not be "certain".
My mechanic based it on "his experience", looking at the colour and smelling it. He basically also told me that "he is 100% certain" that all E90 came with CHF for power steering and that my car just "lost the green sticker".
***WARNING*** I am not telling you to following me... experience may differ!
For me, I trusted him and he flushed it with CHF (full drain and fill). It has been 2 years and my car is fine.