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'02 2500 gas mileage?

Usually get around 12. Have gotten as high as 14.3 and the lowest is 10 when pulling about 8000 pounds.
 
Howdy,
City is between 10-12 mpgs about 14 mpg highway but on a road trip from Ohio to Georgia with a fuel additive and resposible/easy driving I was averaging 15.5 mpgs. However I have the 3.73 gears which gets me a little more mpgs than the 4.10's
 
I started out with 13, put the lift kit on and it took it down to 11 to 12 no matter how I drive her. I get about 10 pulling a 32' camper around... I started getting around 9 steady when I hit 25,000. Had the dealer clean the fuel injectors and took it back up to 11-12 again.
 
Just checked the mpg on my 03' 2500. One week of driving on interstates and country roads, and everday around town came to 12.4 overall. That's checking by filling to the top of the filler neck at the same station and same pump.
 
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