Last post on Apr 05, 2011 at 2:27 PM
You are in the Jeep Liberty and Jeep Liberty Diesel
What is this discussion about?
Jeep Liberty, Fuel Efficiency (MPG), SUV
#33 of 62 Re: 2006 Liberty Limited [stingray66]
Mar 30, 2007 (8:29 am)
I know the mpg computer is not extremely accurate but what does your read out to when you cruise at 60 and reset the console? Mine is always around 20-22 mpg but changes with wind and terrain. Around town maybe 15. You should make sure that you have the computer chip reprogamming procedure if you have a Liberty that is affected. Unless you get almost what you paid for it, you will never recover in depreciation what you lose in gas mileage swapping vehicles. For 10000 miles the difference between averaging 20mpg [impossible] and 15mpg at $2.75 a gallon is $258. You can adjust it anyway you want but mpg is rarely a sound reason for switching vehicles. If you like the Liberty, enjoy the ride and forget about the mpg. If not, swap it for something that does better and smile when you fill up but don't figure out what that switch really cost you.
#34 of 62 2006 Liberty Limited [stingray66]
Apr 09, 2007 (5:23 am)
Appreciate the comments and I agree to the huge loss in trading vehicles. It is more the issue that this small, but heavy, vehicle is so "thirsty" and the big machine, Jeep / Daimler-Chrysler, is unwilling to even offer any "words of wisdom". The typical "party line responses" get old. What iss the "computer chip reprogamming procedure" you mention? Is that a recall item and what years or Vin/s/n range vehicles were affected? Is this something that may improve the mileage?
Thanks - Stingray
#35 of 62 Re: 2006 Liberty Limited [stingray66]
Apr 09, 2007 (8:34 am)
You might check for posts re the chip re-program or ask your dealer. I have an 03 and it doesn't effect me but I have read posts here that refer to it. Good luck.
#36 of 62 final drive ratio
Apr 10, 2007 (11:33 pm)
I went and looked at the Jeep website and there is shows the sport (either manual or automatic interestingly) as having a gear ratio of 3.55. The limited comes with a 3.73 ratio. So that should make the limiteds appear faster and less fuel efficent. I would have expected the automatics to all have the 3.73 but in any case if you were to replace the final drive gear (not too expensive to do since its in the rear pumpkin right?) to a yet higher ratio it should help mileage I would guess.
#37 of 62 Re: final drive ratio [theronrohr]
Apr 11, 2007 (7:32 am)
Appreciate the opinion and tend to agree with the ratio theory. Down side to this is the frt. and rr. ring&pinion would need to be exchanged to maintain proper drive line balance. This becomes more complicated and expensive. Drive line wond-up, just like with different diameter tires, can be quite a problem.
I do feel Jeep "screwed up" putting a 3.73 ratio in. A 3.48 or 3.55 would have been more appropriate. With this engine, they are too high in the Hp curve, compromising fuel economy. Naturally they will never admit to this, just like they ignore the whole issue with low mileage problem. I've talked with several other owners who have the same complaint.
#38 of 62 Mileage Report
Apr 27, 2007 (11:26 am)
I'm so happy, I had to tell someone! I have an 05 Liberty Renegade 4WD. Usually I get about 17 mpg in mixed driving (60fwy/40city). One tank was only 16.5, so I really babied it this week, using every driving trick I knew and got the mileage on my last tank up to 20.90 mpg. This is the absolute best mileage I've ever gotten. Now if I can get used to everyone blasting by me on the freeways and side roads, maybe I can do it again!
#39 of 62 Re: Mileage Report [yelorose]
May 06, 2007 (10:09 pm)
Heh, heh, congratulations! But its pretty sad that you have to work that hard to get 20 mpg. Did you try overinflating your tires? That's been the most effective thing for my Mustang on long trips. I'm interested in the Liberty's cousin the Dodge Nitro. Its supposed to be rated a little better on gas but I'm not sure why.
May 12, 2007 (10:50 pm)
I have a 2006 diesel and Iím only getting 22mpg if I drive it right. Is there something wrong with my jeep liberty crd 4x4. After 19K it isnít getting better. Friend of mine regularly gets 25mpg on his 2005. It is expected to get 22-26.I do my calculations myself. Thanks
#41 of 62 Re: 2005 crd [redlemon]
May 18, 2007 (1:09 pm)
Ask your friend if he fills his tank with imperial gallons instead of American gallons. 20 miles per American gallon would equal 25 miles per imperial gallon. (Because the imperial gallon is bigger.)
#42 of 62 Re: 2005 crd [redlemon]
May 18, 2007 (4:24 pm)
i get about eighteen miles per gallon to twenty in town and about twenty three to four on the road dont pay attention to the readout display it will be off about two to four miles