If you have a car with rotors that need to be cleaned, there are a few things you can do. First, make sure the car is cool. Second, use a bucket or large container to catch the dirty water. Third, use a hose to spray the dirty water onto the rotors. Fourth, use a scrub brush to scrub the rotors clean. Fifth, rinse the rotors with clean water and dry them off. Sixth, apply a coating of sealant or wax to the rotor surface and let it dry. Seventh, reattach the wheel and drive your car! ..