The 12’s may not be covered by the warranty extension but I have definitely seen the issue on both 11’s and 12’s.2011-2012 models seem to not have the oil consumption problems that earlier models did.
In fact, it seems to be most prevalent on the ones that take 0W-20.
https://static.nhtsa.gov/odi/tsbs/2015/SB-10052511-3439.pdf