I think i've only changed my rotors once, but right now I'm using carquest gold, which are "guaranteed for life" so long as the wear is even...but I'm hearing the quick rub...rub...rub...rub...rub...rub... when I'm driving... so I should probably just dissasemble, and reassemble them, make sure they're seated correctly... but last time I tried that the plate (not the spacer, the actual metal plate on the pad) on my passenger side pads started flaking.