[bobbybouchet]

I flushed the factory brake fluid out and noticed there was a lot of white debris in the fluid. I searched and found others had the same stuff in theirs. Does anyone know why its in there or what it is? Car is a year old with 12k street driven miles.

I put 2 Liters of brake fluid through the system trying to get it out, but there was still a lot of debris.

[WRXBrakes]

yeah - no idea - flaky white stuff?

It was not in my wrx

[bobbybouchet]

Yeah flaky white stuff. No debris in my WRX either.

[JPotter]

I thought it was just my neglect that had gotten that stuff in there. When I finally did the fluid on my 05 STi at 38k miles, I had a lot of those white 'flakes' in the fluid. Though I only needed 1 liter to flush it out.

Weird.

[Turninconcepts.com]

I've seen it on my own car, and a few customer cars. I suspect it's assembly lube.