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garz747 · 12-14-2020, 11:17 AM

Before you go that route with a non- M Z I would recommend you change out the BMW "lifetime" transmission fluid with Royal Purple SynchroMax trans fluid. Although I have not done this to my M coupe yet, I noticed massive improvement in my old 330i.

12-14-2020, 11:17 AM	#3
garz747 Captain 286 Rep 679 Posts Drives: 07 Z4MC 01 330i 18 X3 M40i Join Date: Jul 2015 Location: Toronto iTrader: (0)	Before you go that route with a non- M Z I would recommend you change out the BMW "lifetime" transmission fluid with Royal Purple SynchroMax trans fluid. Although I have not done this to my M coupe yet, I noticed massive improvement in my old 330i.
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