Took my bike to halfords to get my brake bleed. Gave them like a half filled big bottle of mineral oil to do it with. Went to pick it up next day. they said it was done, I pulled the brake in and the pistons didnt even start to move until it got like 5mm away from the bars. Also got oil all over my front disk and oil all over my rim which then involed grinding my rim and gettin new disk pads,Which I robed from Halfords anyway.