Blue04

We really like our 04 Grand Cherokee 4x4 with the 4.0, but it's getting harder to swallow to the 14-16 City. My wife drives it like a grandma 20 miles a day tops. Like 90% City.

Do the 2005's and up get anything noticeably better? Sure, it would be nice to have a 2014. 1 good thing we would get rid of is the design flaw associated with gas tank on the 04's.

We drove a 2005 Liberty Limited and that's nice, but small.

Thanks in Advance

billytoad631

a cold air intake could bump you up 1 or 2 mpg's

Blue04

Thought about that. What about handheld tuners? Take it the Dyno shop and dial it in?
I think Summit carries a cat-back for the 04's?

billytoad631

I believe (correct me if im wrong) super chips claims you can gain mpg with there handheld tuner.. never used one so I cant chime in much about them

I ARE EL1TE

Get rid of the 4.0L if you want better MPG. It wasn't designed to be particularly efficient.

Tsaani97xj

Wife has a 2012 KK (Liberty) and it gets around 17ish. Kind of disappointing for a vehicle this new but she wanted another jeep. My XJ was hers for about 5 years. Everything else about it as a vehicle is really nice except MPG. I think almost all the jeeps up until recently get this range. Patriot and Compass dont count as jeeps.

Blue04

Was the straight 6 ditched in 2005 for the 3.7? 4.0, 4.7 not much difference in efficiency. I would love to ditch that gas *****.

andrewmp6

20mpg for a true 4x4 is pretty good,What kinda mileage you looking to get?A friend one mine had a jeep tj 4 cylinder 5 speed 4x4 and he got 15mpg highway on a good day.

andrewmp6

20mpg for a true 4x4 is pretty good,What kinda mileage you looking to get?A friend one mine had a jeep tj 4 cylinder 5 speed 4x4 and he got 15mpg highway on a good day.

CrawdadSlim

Wtf!

F1Addict

The EPA rating for a 4.0L '04 Grand is 14 city/19 hwy. It's highly unlikely that you will improve on that no matter what you do. The best you can do is...

1. remove all extraneous weight
2. Keep tires inflated to recommended pressure
3. Maintain everything

A Grand Cherokee isn't the best city commuter unless that city is covered in snow most of the time, in which case, you sacrifice economy for safety. Otherwise, buy your wife a nice Prius.

XJmike0122

I can vouch for that. My 4 banger TJ is worse than my XJ

XJmike0122

Oh yeah a new 300-400 dollar monthly car payment is a great way to save money.

CrawdadSlim

Damn, you guys must love those tjs not to have cut them loose.

F1Addict

That car payment would be offset (somewhat) by the fuel savings. And I was semi-joking about the Prius, there are many compact hybrid and plug-ins out there that cost less than the Prius.