Thread: Coolant mix or straight water?
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      07-29-2019, 07:43 PM   #6
joeo
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Drives: 2009 Crimson Red 135i
Join Date: Mar 2008
Location: Sterling, Va

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2009 BMM 135i  [9.50]
I've tried running distilled water + water wetter; didn't notice any difference in track time water temperatures, so I switched back to BMW coolant. Engine is all stock.
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