Yes I am hand crunching those numbers. In my excel spredsheet it figures it out as well as comparing it to the "Lie-O-Meter" reading. Fortuneatly my "Lie-O-Meter" is usualy only off by about .2 MPG so it is pretty much on target.

The 29.9 was recorded off the truck computer, and while it is an accurate number, I was rolling down the road just after a full fill up and had the cruse already running when I hit the reset, just to see what kind of numbers I would get not having to deal with the acceleration to get on the freeway.

 

07 2500 QC Hemi 4x4,
Only getting 10.5 in town ( we only have one stop light and a hand full of stop signs). Im in the process of trying to tweak my MPG. just did a tune up, and got snytho oil with a K and N. So far no change in my MPG. =(

 

05 1500 qc 4x4 hemi 15.5 city and about 17 highway .when i got the truck it was getting 12-13 mpg city then I changed the plugs with stock champions,k&n drop in filter,cleaned the throttle plate, mobil 1 in the engine,and a flowmaster catback system and saw a pretty decent improvement.

 

2002 1500 4x4 quad slt 4.7 on 20's----10.9 city/13.5 highway

 

Sucks, don't it?

 

1997 5.9 4x4, 60/40 highway/city 14.3 mpg

 

Doing to be getting about 32mpg tomorrow. I'm driving the wife's Caliber

 

Alot has been said. Gas mileage is good/great, depends on how you drive, and maintenance upkeep.

Cruise control is your best friend!!
Highway
65 mph w/ ac running 20-21ish
75 mph w/ ac running 18.9-20 both on flat surface

65 mph w/ ac running 17-19
75 mph w/ ac running 16.5-19 up and down hills

City
AC 12-16 no hurry
AC 10 in a hurry

YES beautimus

No programmer and back to stock exhaust (but to each is own)

 

When using cruise control ;What I noticed was , the truck kicks into a lower gear going down the hills. (to maintain the set speed ), I would /have hit the cancel button at the top of such hills, too create some cruising speed, then resume when back on level ground. You could pick up and xtra mile or two on a long trip I'm thinking.

 

We just got back from Ocean City (496 miles one way) and on the highway this is exactly what I did and I got anywhere from 18-18 1/2. 12 1/2- 13 in the city. AC on all the time and set the cruise about 75. I have an '06 QC 4x4 with the 4.7l Magnum, DIY CAI with drop in K&N filter and everything else motor and exhaust wise is stock.