i have a stock master cylinder, with ATE Super blue and SS lines. After my open track sessions, I can see the brake fluid on top of the cylinder and in between the seam. It's also getting worse, today there was fluid residue on the valve cover. It seems to be leaking from both the cap and seam. Anyone have any ideas? Not sure what Ford will say with the different fluid.
thanks,
Jason

 

I've been running the same in my 08 GT since April last year for 6 track days and over 6K miles and so far no problems.

 

ok, thanks

 

A lot of the '05 and '06 cars had issues with master cylinders leaking, mine included. I don't know if it was common enough for a tsb to be issued. My buddies' car got fluid on his firewall and the dealer had the paint fixed.

I would check the cap. I know mine was replaced, but i'm not sure if they changed the design at all.

I had Motul600 at the time and wasn't hassled, but then it's not blue in color either.

That's all I know.

 

thanks rodeoflyer, that's what I needed. I'll take it in.

 

Well, I had the dealer replace the cap and went to the track yesterday. Same thing. I'm bleeding the brakes today and I'm going to leave the fluid at the min. mark. See what happens then. Also, I noticed that after my session and saw the fluid on the reservoir, that when i opened the cap, it was under pressure and there was a slight sucking sound. Not sure if that means anything

 

You could always try this. http://www.s197forum.com/forum/showthread.php?t=11075