well got my recall done the 2nd day it came out.. wasn't having issues but figured it may prvent some. well 4 days ago got a CEL, drove it around then went to dealer yesterday. it was the nox that was replaced for warrenty was bad.. got to wait till Wednesday for new one to arrive. drove all day yesterday, after each shut off it was regening and burnt 1/4 super fast. at the 5th turn off it did not have regen on then CEL turned itself off lol. speak bad about CTD emissions but seems mine said ill fix myself.. only took it 4 driving regens in 1 day