yes, but wouldnt their be even more mpg loss in the city as well? he didn't say he had a problem with that..... and its still 1:1 in hi range......
Well no he did not, but it's hard to track MPG in stop and go traffic.. But more gears and more turning mass equals more drag..
What else has he done to the truck...tires? diff ratio....too high, too low? etc