What is Up with These Clutches!?

radensb

It seems like I am always dealing with the clutch in one way or another...

I had both the master and CSC replaced back in February and bleed with GT-R fluid. All was fine for about 6 months, after which, I began loosing pressure in the clutch peddle after 10-15 minutes of driving to the point that I could not shift. If I shut the car off for a few seconds, I would get pressure back for another minute or so. I solved this by flushing the clutch fluid with new ATE TYP 200. The old fluid that came out was very dirty. With the new fluid, the clutch performed great and I had no issues...

...until a few days ago. I am noticing that the peddle is getting soft again after extended periods of not shifting (20 min freeway commute in overdrive). When I shift out of overdrive, the clutch peddle goes down about 75% without resistance and engages at the very end of travel before hitting the wall. If I pump the clutch, I get pressure back and as long as I am pressing the clutch at regular intervals (city driving) it doesn't give me any problems. I am going to flush the fluid out again, but I don't really want to have to do this every few months. So far, it has not left me in a state where I cannot shift, however, it is the same symptoms as before that lead to that state.

I am not racing or being hard on the car, just commuting and the fluid level never changes, so I'm not leaking. Anyone else experience this?