2011 3.7 with 3.73 gears Highway MPGs
Well I must say that I am very pleased with this little V6s performance. We just drove from the east coast to Phoenix, AZ. Considering that we went from high 70s in NC to 110 Degrees here in AZ., I would say that the little pony performed exceptionally.
She averaged 26.4 MPG (manual calculation) over the course of 9 separate fill ups. I usually fill up between a half tank and quarter tank. My standard cruise control setting was 80 MPH as long as traffic allowed.
I must admit there were a couple of times where we reached triple digits. sometime just for fun and sometimes to show some older GTs not to mess with the 3.7s. Just thought you all might want to know.