scotty999

Ok guys. Ive searched around the forum for an answer to my question but im not finding one so here goes.
I am a newbie to the track and was heading to willow springs raceway so i decided to dump my old brake fluid. I bought the speed bleeders which worked really great. I took a syringe and emptied the reservoir then filled the motul 600. Bled the brakes topping off fluid a few times in between. So far so good. I head to the track and the day goes fine other than my hawk street pads being quite inadequate. (Felt like i needed two feet at turn 3 by the end of the day. I got a little soft pedal after noon but not too bad. Drove home and check out the fluid the next day. Its kind of coagulated in the inner cap and inside the reservoir, and it looks like some cloudiness inside the mostly clear fluid inside. Im going to dump it all and start over. Any idea what it is rat track experts?

ZedO6

Looks like something other than brake fluid was mixed in there. Were you using silicone fluid at one point? All other brake fluids should be compatible and will mix without issue. That is serious...you need to ensure that the ABS pump didn't accumulate this gunk as well as the calipers. I'm not sure I'd just flush it and run it.

scotty999

All stock z06 brakes. Can't imagine the prior owner putting silicone in...he had all his work done by a top notch race shop in San Diego...

ZedO6

Just never seen sludge or fluid breakdown like that in any brake system before. I'm talking about 15 year old street cars with original fluid as well. Usually you see the discoloration from seal wear, line corrosion and moisture but nothing like solidified fluid.

Sox-Fan

At this point a complete pressure flush is in order, and i'd try to get someone with a TechII to make sure the abs flushes through too.

Olitho

I agree, and it will probably require at least three bottles before that junk is all out. You will need to Tech2 bleed the ABS as well.

I saw this once myself on my 2004 street Z06. I never figured out what caused it to happen.