I swear by dot 5.1 fluid & braided lines....cured my brake fade back when I used to do track days in the UK. The pedal would go straight to the floor after two or three corners beforehand. Not much dearer then the normal fluid eitherI've decided I need I need to make new break lines as mine look a bit worse for wear but I think I'll throw some random brake fluid in there for now just to get the car rolling safely on and off trailers and into the shed.