Clutch Fluid Black

[Scootsmcgreggor]

I divorced my clutch reservoir from the brake, and after each track day the fluid is black. I suck the reservoir dry, put new fluid in, and end of next track day it’s super dark again. Fluid is rbf600. Clutch seems fine and the master shows no signs of leaking. 16k miles OEM clutch.

Thoughts?

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[luca1290]

It usually becomes black because of overheating.
Since you mentioned tracking it, to me it comes as no surprise, also because you separated the two lines now you have less fluid to dissipate the heat the clutch is inducing in the fluid.