Get almost exactly the same with my 09 SRT8 auto. A little better in the summer and just about the same as waumo is getting.Pretty much just what the EPA rating says if you don't floor it every time you take off.
My 09 sticker says 13/19 and I average 17.5 or so on summer gas and 15-16 on winter gas for probably slightly >50% highway driving.
Probably nothing wrong. You just need to break in the motor. While you are in the break in period take it easy if you know what I mean. Use toptier fuel as well. Take a look at www.toptiergas.com.Hmmmmm, I'm thinking perhaps something is wrong with my 2011 IE 392 as I'm averaging 11.5MPG driving nicely with 60% being highway...
Nothing sounds wrong while driving but that MPG seems rather low to me...
Anyone have ideas on things I should check?