Re: 15 SRT R-Rotor issues 400 mls
I've had a very similar issue with both back rotors, pretty much since day 1. Definitely noticeable lines, rough surface, sometimes a little discolouration. It's hard to describe. To my untrained eye they look like aren't being used much, or not much force is being applied.
I parked beside another 2014 the other day, had stickers from the same dealership as mine, and his back rotors were smooth and shiny and uniform, just like my front ones are. I asked the dealer to inspect them at the first oil change, but they said it was "normal". Now I'm way beyond 12k.