I have heard others say after lifting that they got worse fuel economy.

I wouldn't think a 2' lift and a change from 29" to 31'' tires wouldn't make a noticable change. Most of the time bigger tires are installed after a lift and people don't get the computer reprogrammed so the mpg calculations would be incorrect. Or if the change in tire size is extreme the engine works too hard to turn them over and economy would be impacted.

Have those of you that are lifted and recalibrated your computer noticed a decline in fuel economy?

_________________
Sold 05 CRD Patriot Blue, hole in the roof, Trailer tow, factory skids, LSD, Saris load bars, Michelin LTX M/S
Current Bright white 2010 Dakota Quad Cab 4x4 V8

Might want to ask in the mileage section...Later...Clint

_________________
http://lostkjwest.com
http://www.azlostkj.com
http://lostzj.com
KE7JLP

it all depends on the tires you pic. i have the general grabber at2 and they arent to agressive. i think i'll lose .5 to 1mpg but i havent run a full tank on the tires. if you get mt type tires kiss your mpg good-bye

_________________
295lb feet of torque, 2.5in DayStar lift, 255/70-16 General Grabber AT2s

I have BFG MT's and get 14mpg average mixed driving.

_________________
Richard~Mid Atlantic VA Rep.
NCBBA/Mid Atlantic Jeepers/UFWDA Member
Mid-Atlantic & Carolina LOST #236236
2006 TJ Solar Yellow Rubicon
Lockers, Springs, Skids, Headers, Snorkel,
Exhaust Work, 4.5 Long Arm, Warn M8000
315/75/16 Nitto Terra Grapplers Moab's/SpiderTrax, 6000k HID, IPF H4

Well, if you get a 2.5 lift, heavier tires and all the skid protection you can handle, you add about 150 to 200 pounds for all the skids, heavier rolling resistance tires that take more gas to "get going" and you are raising your profile to catch more drag and the air has an easier airflow underneath the vehicle which would cause even more drag. In my CRD, I went from 22 city to 20 with all my mods. I dont think it was the weight of the armor but the heavier 265/75's and the extra drag of the lift.

Hope this helps.

Dave

_________________
2005 Black CRD Sport
All J CRD Frankenlift with 500 fronts, Boulderbars, and Superskid
Kilby Gas Skid
Yukon Rear Axles
265/75 16 TrXus M/T's and Bridgestone Revo's
Fumoto Valve
Aero Turbine 2525
Rock Lizard Komodo Bumper
Sundance Custom's Front Bumper

AZ,

Do you have any pics of your CRD with the 265s? I've also got a CRD with a 2.5" lift, and am considering what size tire to upgrade to.

_________________
2005 Jeep Liberty CRD, Provent CCR, 2.5" lift

Diesel...

Here are some pics and what I had to do to get them to fit.

http://www.flickr.com/photos/13657537@N00/

Hope this helps.

Dave

_________________
2005 Black CRD Sport
All J CRD Frankenlift with 500 fronts, Boulderbars, and Superskid
Kilby Gas Skid
Yukon Rear Axles
265/75 16 TrXus M/T's and Bridgestone Revo's
Fumoto Valve
Aero Turbine 2525
Rock Lizard Komodo Bumper
Sundance Custom's Front Bumper

Rusty's lift with 31's and 19 mpg highway down from 20 when stock.

_________________
2004 KJ Sport 4x4
L.O.S.T. #006901
Rusty's 2.5" Coil Lift & Diff Skid, 245/75-16 REVO's, K&N
****Grocery Rated****