I had my old brakes on too long and last week they were making the worst grinding noise like something had broke off or chipped, every time I braked it would grind so loud. So I obviously changed the brakes. I went ahead and changed the rotors too to be safe, and they needed it. When I changed them, you could see a ton of dust that had caked up on the wheels.
I had assumed the dust was from the old pads and once I change the setup, everything would stop. But it seems like the new rotors are full of the dust again. Could it just be old dust that I need to keep cleaning off? Or what else?
At the least, what should I use to clean the rotors? Regular brake cleaner?