Quote:
Originally Posted by JNoSol
This is true, OEM fluids are fine. If you track a few times a year, you can get by with flushing it once. However, if you do experience fading on one given weekend then you'll need to flush after that track weekend as air is now in your system (boiling).
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Usually brake fade is related to the pads overheating and not the fluid. Bad fluid usually translates into a soft and/or long pedal.
I have been tracking at the rate of 16~20 days per season starting since 2002 with my E46, a single flush per year at the beginning of the season has been proven sufficient for me. However, some tracks can be tougher on brakes, so if one does experience a soft/long brake pedal, more frequent flushes may be needed.