Into the weeds engine design for fuel efficiency discussion.

Ottmundr said
Have you considered the 3.6 pentastar? Pick-n-pull maybe? The more I learn about it the more I like it.

I have that engine in my 300 and combined with the 8spd I love it. Don't know that it would be up to towing duty though.

I have thought that the 3.6 8spd combo in an A body should be capable of knocking down 30mpg though.