As I'm sure you've read, lubricating through the firewall is a temporary fix (Albeit a cheap and easy one). I've had mine replaced 2x now and I'm doing OK but I'm sure it's a matter of time before it starts squeaking/clicking/creaking again. I've heard that the EM1 Clutch Master Cylinder is better, bolts up to our Civics, and does not exhibit the problem. I'm now out of warranty and if/when it starts happening to me again, assuming I have to pay out of pocket, I'm going to have them use the EM1 CMC. Chances are (because I'm frugal as f***), I'll just keep greasing like everyone else does.
Damn. I really thought the Em1 would be better. OK, anyone try the Omni CMC? I heard you can get them directly from Omni or from Clubrsx....
well hell, that's just like the OEM. I didn't have problems with my OEM 8th civic one for YEARS until one day...Well, it is at first. Lol. But then after a while it was the same thing as the stock one. I didn't have to start greasing it until months after I put it in.
I'd think if you get the EM1 CMC and just grease it regularly, you won't have any problems.