Turning a rotor allows for smooth braking action and creates less heat then those that are warped. Typically you want to have your rotors turned every other brake change. ... This will ensure the maximum amount of life to the brake pads. Realistically rotors can only be turned so much before they need to be replaced.2012-01-27
Is it cheaper to resurface or replace rotors?
Cost: It is sometimes cheaper to replace the rotor than to resurface the rotor. You can get after-market brake rotors for a fairly low price, making it more cost-effective than either spending time doing the labor of resurfacing yourself or hiring and paying someone else to resurface your rotors.