Pretty decent, however I don't expect to get that kind of mileage due to aerodynamics. The 6000+ lb load I referred to earlier is a 29 ft. travel trailer, just shy of 5000 lbs. empty plus 35 gal. of water and all the gear. Still around 1000 lbs. under the 7400 lb. tow rating but I'm still thinking I want a pre-turbo egt probe before I tow that with a tune.
Hey Ahaze. Just a note on tow ratings - All manufacturers quote tow rating based on an otherwise EMPTY vehicle and a 150lb driver. Don't know about you, but I haven't been 150lbs for about 10 years.... nor do I usually travel alone with no other cargo (human or otherwise) in the Jeep with me.
SO, while the Jeep is rated for 7400lbs (4x2) or 7200lbs (4x4), the maximum Gross Combined Vehicle Weight (Jeep + trailer) is only 12, 250lbs according to the owners manual.
Check the sticker on the driver's door sill for your Jeep's GVWR (gross vehicle weight rating - ie you, your passengers, gear, etc to the maximum rated capacity for the Jeep) and subtract that from the GCWR to find out how much you can actually safely tow.
I did this before pulling the trigger on our new 25ft travel trailer. My CRD's GVWR is 6150lbs. Subtracting that from the 12250lb GCWR leave me 6100lbs available for the trailer, fully loaded. Not quite the 7200lb tow rating in the manual.....
My trailer's Gross (loaded) weight is 4800lbs. The CRD tows it like a champ and I've got 1200lbs of "extra" towing capacity under the hood. that;s a comfortable margin for me; some may consider it too much weight to give up, but when I'm towing, I'm also usually hauling some pretty preciuos cargo - my wife and 2 daughters - so I'm happy to err on the side of caution.