schmenke

2013 Eco Screw with the 3.73 ratio diff. I still have relatively low milage on the truck but the lifetime average is hovering around 14.3 L/100kms. That's mostly highway, towing a small tent trailer, with a bit of city driving.
I've had the trip odometer read as low as 13 L/100kms on long highway stints.

hopelessbrand

I get 9.3L/100km on the HWY around the city I average about 13.4L/100km probably due to WOT of the lines and playing with imports on the roads :P

drybread

2012 Screw , 3.73 diff with 6ft box . I always do under 15 L with city driving . and 12 L with highway doing 120 km. but I use med grade gas .
right now I'm averaging 13.6 city driving with the nice weather .

Bill_The_PA

This is as real world as I can get. Mostly 70/30 city/highway 2012 ECOSCREW Lariat fully loaded 145" WB with 3.73 diff. Not all that bad considering.