View Single Post
      01-05-2013, 05:21 PM   #2
ed330D
Private
France
0
Rep
87
Posts

 
Drives: E92 330D
Join Date: Jun 2012
Location: SW France

iTrader: (0)

OEM is dot4. Dot 4 super has a much higher boiling point both dry and wet. Dry is when new (unused), whereas wet is used fluid, ie it has taken in moisture from the air.

There is no advantage in using super dot4 unless you are racing or doing track-days.

The fall off in performance over time, because of moisture lowering the boiling point, is the biggest factor for all users. Please, please, please, change the fluid, as recommended, at least every two years.