OK, read through the entire thread.... What is the actual BMW spec for the 6MT trans fluid? I will have a 135i N55 6MT. Here at Honda we use Castrol MaxLife ATF fluid in our automatic trannies. A full synthetic. Meets BMW specs LT71141, LA2634 and M-1375.4.
Edit: Nevermind, have not had my coffee yet.....
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Factory fill is MTF-LT-3. Then it went to MTF-LT-4. It might even be now LT-5 like the 1M and N55's use.
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