Gas mileage suckage (no e30 content)

[Joe G]

This past summer i sold my 04 A4 1.8t 6spd for $10,000 gave my dad the cash and he gave me his loaded 06 Jeep Grand Cherokee with the 5.7l Hemi. I knew the jeeps gas mileage would suck, and i would miss my A4, but my dad needed the cash so i did the deal. Anyway, ive been driving the jeep as my daily and this gas mileage is destroying my. I'm averaging 12.8-13.8ish regardless of highway or city. I don't take it over 75mph and i drive it pretty conservatively. This sucks, a lot. Do any of you guys know any ways to improve MPG?

I cant go on like this. There are 2 months left on the financing and once its paid off its bye bye jeep, but until then i need a solution.

thanks in advance.

[Wh33lhop]

Drive the e30. There is nothing that's going to get you 2x better mileage from that jeep.

[unrlmth]

My friend's jeep pretty consistently averages sub 14. As long as there aren't any maintenance things overdue, there isn't a lot you can do.

[Dj Buttchug]

does it have huge tires on it? that makes mileage way worse

[Joe G]

its completely stock. Up to date on maintenance, but has 140k miles.

[87e30]

Buy a scooter.

[recall]

Driving 45-55 mph should give you optimal mileage on most cars, if you can keep it there and avoid dying... Also, upping your tire pressure might help (not above max sidewall).

[Vtec?lol]

up the pressure and buy a tuner.
all 5.7's eat gas but thats how they are tuned. The tuner will grab you 2-3.5 mpg highway. (they won't run better at all)

the trick with the hemi is stayin under 2800rpm. It's going to suck but it's all you can do.
I drove the 5.7 commander and owned a 06 5.7 ram... all the same suck ass results.

[blueapplesoda]

ive got all of 300whp at the tap of my foot and i avg 19 city and 26 hwy....didn't even get that much economy stock.

let me add CDI, COP and sequential ign/fuel, and I can probably bring efficiency up a few more. maybe you can do the same for that thing.

[Vtec?lol]

Inspiration. !!!