[White_1LE]

I had this happen to me on Saturday on my 2019 ZLE. Just the front calipers, but both had tracks of fluid residue coming from the bleeders. I took the rubber caps off and they were completely dry. I had hosed them out with brake cleaner after bleeding the brakes and putting Castrol SRF in. And it has many hundreds of street miles on it since.

So had to be somehow coming through the threads. I did feel like the pedal was a little softer after my first session, but never felt I did not have enough brakes for what I was doing. The main straight at I29 is 140-ish down to 70-ish and the second straight is ~125 down to about ~65 and never felt out of brakes, just a bit softer pedal than I prefer after a few sessions. I put the SRF in last August, then just refreshed the reservoir with fresh stuff before going to the track on Saturday.

I think I will completely remove the bleeders and see how the threads look and go from there. I cannot imagine I boiled the fluid. I have the "Blackwing" deflectors to get more air on the brakes to cool them and it was ~70*. I've broken off enough bleeders over the years to be gunshy of cranking on them too though. Maybe I just need to get after them a little more. I haven't put a wrench on them yet to see if any feel undertorqued. I kind of doubt I put 13 ftlbs on them though. That's actually a lot for bleeder, IMO.