The muc off disc brake cleaner our disc brake cleaner can improve braking performance by rapidly removing brake dust and oil as well as dirt and grime from all braking parts its unique formula has added conditioners that rehydrate your disc brake pads to dramatically reduce brake squeal prolong the disc pad life and restore braking performance muc off disc brake cleaner features improves braking performance treats pads and rotors to reduce brake squeal prolongs disc pad an