Had to replace my front rotors and pads and master cylinder. Bled all wheels and all working fine. Then they started dropping again to the floor. I noticed last trip after a hard climb through the nev...
OP, how old was the brake fluid when you drained it after this experience? What color was it?
New DOT III brake fluid boils around 500 degrees F. As it absorbs water (to protect the iron parts of your braking system) the boiling point lowers-- with most hydrated brake fluid having a boiling point of 286 degrees F.
BIG difference between 286 and 500 degrees!
Brake fluid should be changed every two years-- maybe every three if you never leave your desert location.