Just as a data point, in '05 when Car and Driver road tested the LR3 here's what they got:

FUEL ECONOMY
EPA city driving: 14 mpg
EPA highway driving: 18 mpg
C/D-observed: 14 mpg

 

Yeah...maybe it was cheating a little to reset the calculator after getting to highway speed, but to me that's a more fair assessment of "MPG HIGHWAY" than having to take the hit from the acceleration from on-ramp speed to 60/70 MPH.

@ the poster asking if I was aware that larger tires would mess up the ODO: yes, I did know that, but I'm not sure how it would impact the MPG computer/calculator on the dash, because I don't know the algorithm it uses.

I guess at the end of the day I don't expect much from a big, chunky, 6000 lb 4x4.

 

What do you mean you have not seen that kind of economy?
This is what I getting on the weekend escapades and the second picture is after I refueled and driven 25 more miles..so..

 

In the first pic the (trip) ODO says 1.0 Miles. I'd like to see you average that over a farther distance...like 100 Miles.