Have a new 2012 Sonata SE 4 cyl. Getting 18 mpg city and 20.5 road. Anybody else have same problem? Took back and they state they do not know what is wrong. They had car 4 days and released back to me with same low mpg (plus some mechanic left a baby bottle in trunk). Also one AM radio station has 'squalling' and cannot be used. Satilite stations do not make sense - do not progress like AM/FM stations. Wander into their own selections. This is my 2nd Sonata and nothing like my first (2009) which was getting 24+ in town and up to 39 on the road. Very concerned.