Quote:
Originally Posted by MrSweetE70
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I would suggest to use a coolant (anti-freeze) that is nitrate and amino free....which is what BMW used during the e70 X5 era. The original BMW blue coolant or Zerex G48 is preferable. But BMW has changed up on the newer models and now uses HT-12 which can be green or magenta...which is backwards compatible with the "old Blue" & G48: