The hemi in a 2500 is underpowered IMO...get a CTD if you can. If you're looking at a QC 4x4 2500 hemi your mileage will be crap...if mpg even enters your mind with that truck you need a CTD or something else all together.
get a 2500 CTD 4x4 and get a "smart" programmer/tuner and u can get 450hp and 850tq easy!!! and still get 17mpg city and 21 mpg highway... this will be my next truck...and the powertrian will last 300,000miles easy!
yeah but another thing to look at is the maintenance on a CTD if you dont tow up to capacity regularly its going to be a waste of money IMO i get 14 city and 16 hwy, plenty powerful but of course i want more...and a tuner will destroy a diesel without accompanying bolt ons, (intake, exhaust, downpipe)
99' CCSB 2500 4x4 cummins 5spd, 4" magniflow turbo back exhaust, fass DDRP lift pump with big line kit, exhaust break, and quadzilla milage max.
I get between 10 and 11 mpg empty around town. 12 highway if I baby her and between 7 and 8.5 towing our camper depending on speed. Don't get a 2500 for mileage. Get ****box econo car for that! You get a 2500 for towing, hauling and lifting/wheeling.
Bigc: hes defintatly right go with a cummins, our last cummins made it to 350,000miles without a problem and finally started to see the dealer closer to around 400k. the SMARTY from MADS is an excellent product and by far the best product tuner wise for the cummins.
draco, not sure what you mean about a tuner destroying a diesel without bolt-ons, if your talking about the 48RE thats one thing but not others....
so basically along with what everyone else has said, if your going to get a 2500 be sure to do yourself a favor and get a CTD, the hemi is fine and the owners of the 2500 HEMI love them, but i would personally grab a CTD if your worried about MPGs.
I had an '08 1500 QC 4x4 before trading it for a 2500 with essentially the same specs (long story). Slightly different tire sizes but a different axle ratio worked out to the same final drive.
Mileage dropped ~1Mpg according to the overhead for all driving; in town, highway, and towing, but.... I watch mileage for the amusement. It's a truck, and I don't stress over how much gas I put in it.
I get about 10Mpg towing a 7,000lb trailer and that's through coastal mountains in the northwest. My older trucks (73 Chev, 76, Dodge) got 10-12Mpg on the freeway so I'm really happy. My 87 suburban only got about 14-15Mpg on the freeway and I get about 18 now. My 2000 Explorer got about 19Mpg on the freeway.
As far as power... I can maintain 55-60Mph in the mountains. I think it was Hammer that said, essentially, to not worry about running the Hemi in its power band. 4000-4400RPM sounds a bit scary but the truck moves right along.
I love my 2500. The Hemi is plenty powerful in my opinion, but I do not have the need for a CTD. The mileage is averaging around 12.5. Plus I like being able to work on it myself. Draco, what size tires do you have? Is yours lifted at all?
Get a 2500 hemi with the six speed and you will get way better MPG than the MDS hemi, the CTD are a total waste of money if your not going to tow, CTD owners throw thier money out thier tial pipes with all the go fast mods, I still meet them at the red lights!!!
I get the same mpg as a CTD 6sp with my hemi 6sp, granted, I don't have the power, or mileage when towing, but I'm ok with that.
True dual ex, cab high topper, I can average 20 MPG high way, 6th gear 1800 RPMs, 60 mph, 65 mph, mileage drops big time...