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Jeep Liberty Real World MPG

58 messages,  Last post on Sep 09, 2009 at 5:17 PM

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What is this discussion about? Jeep Liberty, Fuel Efficiency (MPG), SUV

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#29 of 58 2002 Liberty Sport Mileage by ecraman Nov 30, 2006 (4:53 pm)
Our 2002 Liberty Sport will do about 13 around town and at best 21 on the highway. 2005 CRD does 26 all of the time but that is mostly highway. Replies to this message: bobkeener (Feb 28, 2007 12:34 pm) jayrider (Feb 28, 2007 3:51 pm)
#30 of 58 Piggy by bobkeener Feb 28, 2007 (12:34 pm)
Replying to: ecraman (Nov 30, 2006 4:53 pm) My big problem with my Liberty is she is a piggie, 12 mpg city and 14 mpg highway. I have never owned another car I did not get in the EPA rating for gas mileage. My 94 Jetta got even better than the EPA rating. I am naming her Miss Piggy. Anyone else disappoint with the economy of the Liberty? Is it just mine or do they all do this bad? Replies to this message: jayrider (Feb 28, 2007 3:51 pm)
#31 of 58 Re: Piggy [bobkeener] by jayrider Feb 28, 2007 (3:51 pm)
Replying to: bobkeener (Feb 28, 2007 12:34 pm) you must have a problem because most everyone is reporting the low 20's cruising on the highway at 60 mph.
#32 of 58 2006 Liberty Limited by stingray66 Mar 28, 2007 (9:50 am)
Bought this vehicle new for my wife. After review of all contenders in this class, she settled on the Limited model, hoping to receive respectable mileage. This is our 4th Jeep, we know we sacrifice a little but this "vehicle" gets absolute miserable mileage. We now have 5,000 + miles and I have tracked every tank from the 1st 200 miles. Best ever achieved is 18.4 on a 300 mile all highway trip. Generally see 14-16 on the highway with mileage around town at 10 mpg (really) or less. After 1st 3,000 miles, switched to Mobil 1. No dramatic gain except an excellent oil. 2 different dealers have said nothing they can do except drive it and get some miles on it, it will improve with break-in. 5,000 miles and no improvement. Very disappointed and thinking of getting rid of this "lousy" vehicle. Our 2000 Gr. Cherokee 4.7 L gets better. My Suburban got better. Jeep is not wanting to do anything and have turned a deaf ear to the issue. Anyone have any suggestions to help improve the mileage?? If it weren't for the "crappy" mileage, we could probably learn to like the car, but this is a major irritant. Replies to this message: jayrider (Mar 30, 2007 7:29 am)
#33 of 58 Re: 2006 Liberty Limited [stingray66] by jayrider Mar 30, 2007 (7:29 am)
Replying to: stingray66 (Mar 28, 2007 9:50 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 58 2006 Liberty Limited [stingray66] by stingray66 Apr 09, 2007 (4:23 am)
Jayrider, 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 Replies to this message: jayrider (Apr 09, 2007 7:34 am)
#35 of 58 Re: 2006 Liberty Limited [stingray66] by jayrider Apr 09, 2007 (7:34 am)
Replying to: stingray66 (Apr 09, 2007 4:23 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 58 final drive ratio by theronrohr Apr 10, 2007 (10:33 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. Replies to this message: stingray66 (Apr 11, 2007 6:32 am)
#37 of 58 Re: final drive ratio [theronrohr] by stingray66 Apr 11, 2007 (6:32 am)
Replying to: theronrohr (Apr 10, 2007 10:33 pm) Thanks. 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 58 Mileage Report by yelorose Apr 27, 2007 (10:26 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! Replies to this message: theronrohr (May 06, 2007 9:09 pm)

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