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SUVs Jeep Liberty and Jeep Liberty Diesel Jeep Liberty CRD Diesel Real World MPG
148 messages, Last post on Jun 27, 2009 at 4:36 PM
You are in the Jeep Liberty and Jeep Liberty Diesel Forum. Your Hosts are steve_ & tidester
Always used to go to the forum on windows ME but I have tried to go to the forum with windows 2k Pro with no luck. Could you help me?. I go to the edmunds.com and it goes in but no to the forum. also if i googo it does not goes in. What can i do to use my window 2k to get to the forum.
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Replying to: nescosmo (Jun 13, 2007 9:59 pm) tidester, host SUVs and Smart Shopper |
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On a recent trip of 1,137 miles used 42.3 gal of diesel for an overall average FE of 26.9 MPG. Around 400 miles were non-interstate, stop-and-go, some off pavement and average seed well below 55 MPH in central MO. On one stretch logged 31.3 with unfavorable winds and 92 to 97 F temp. This thing loves hot weather. Mostly 65 mph on interstate. I'm not the only one slowing down. 
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Replying to: rjsj (Sep 15, 2006 10:45 am) Thanks for the great info. I have just purchased an 06' Liberty CRD with 26k miles. In reading the postings I have an issue that I have not yet seen addressed. I drive 1 1/2 hours to work on x-way. After about an hour when coming down to slower speeds, (70 mph to 50 mph), the engine feels like it is "missing", and chugs pretty hard. This will seem to happen always after about an hour of driving. I hesitate to take it into a dealer after the horror stories I have read and it gets decent mileage so am concerned the dealer will goof it up. Any idea what could be causing, EGR???
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When the speedometer in my 2006 Liberty CRD was registering 107 kph when the GPS was showing 120 kph, I mentioned this at my next service interval. The mechanic came up with a relatively easy fix. He re-programmed the computer to make it think I had different sized tires on the car. He got it dead on. However, the odometer still registers less kilometers than the GPS records. I have verified the GPS odometer with the markers along the highway. Now, this differential is 12%. In other words, I actually travel 120 km in an hour instead of 107 as my speedometer said. And since my odometer STILL reads 12% LESS, that can only mean one thing. I'm getting approx. 12% better fuel mileage than any of my calculations! So, for what it's worth, I can tell you that I have recorded every drop of diesel fuel, incl. B20 that I have put in the tank since May 26, 2006 when I took delivery until the last fill up on Oct. 20 2007. Of course I used the odometer readings to enter into K-Jon's Vehicle Record System. This is primarily city driving with a few trips, and pulling a 20' trailer on occasion. All this over 28,000 km, or, approx. 17,400 miles. The AVERAGE KPL was 7.1 or, 20.1 mpg CDN / 16.7 mpg US. Now add 12 % to those figures and we get 22.5 mpg CDN & 18.7 mpg US. The average KPL or MPG over 1 & half years may be too much of a stretch because so many factors entered into the equation that have a bearing on 'good' and/or 'bad' fuel consumption. The fact remains, that in this case with a speedometer/odometer error of approx. 12%, the fuel mileage looks quite a bit better. On the highway I can get 35 mpg CDN or 29.1 mpg US. |
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Replying to: jwr5 (Oct 27, 2007 2:07 pm) Nescosmo...
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Replying to: nescosmo (Oct 29, 2007 8:48 pm) The fuel tank is further down towards the ground so any leak in that region will cause the incoming line to cavitate and the engine to stop. The common rail system recirculates the unused fuel to get rid of trapped air bubbles. I haven't had this kind of trouble in more than 25 years of happy dieseling. |
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Hello Everyone, Need a little help… I purchased a 05 Jeep Liberty CRD about 1 ½ months ago. I had traded off my pick up to get something that got better MPG but still could pull a boat and a small trailer. So, to make a long story short. My jeep is getting about 13.5 MPG city driving and on a 425 mile trip all interstate tip going 68-70 MPH I got 17.23 on first tank and 17.56 on the other. Took it into the shop they cannot find anything wrong with it…. My ford f150 got just as good as MPG and if I had known that the jeep got such poor MPG, I would have just kept my tuck. Any help would be Greatly appreciated.. Thanks, Ramon
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Replying to: ramon1460 (Mar 31, 2008 2:46 pm) Even if you never detached and lived in your trailer during winter you should get better mileage than 13.5 mpg. Could you try to contact the previous owner? He knows why he didn't keep it. My experience is that the less power provided by the engine corresponds to the worst mileage condition; I would look at the turbo boost and common rail pressure sensors to start.
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