I washed my Z Friday evening and then pulled it in my garage and didn't drive it for the rest of the weekend. Today I had bad vibration under braking. I looked at my rotors and this is what I found. I usually have some surface rust on my rotors after I wash my car and let it sit. The rust wears away on my first stop but this may take a while. For now on I'm going to drive it after I wash it then park it.
