Quote:
Originally Posted by spaniard
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Agree that every reference I've ever found says 5W-30 or 5W-40 for the X5M. I use the LM 5W-40 in my M. I'm a big fan of their products. I also add two cans of MoS2 at each oil change. My last Z4 had 230K on the clock and always got the MoS2 treatment. I still ran like new when I sold it.