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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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#56 of 58 MPG by gpshunter Jul 01, 2009 (2:00 pm)
Getting back to the original topic....   I bought a used 2003 Liberty in August 2006 with about 40k miles on it. I now have 128k miles on it (I drive a lot) and overall, I have seen around 17 to 19 mpg. I just put a large Thule cargo box on the roof (to make up for what has long been my biggest gripe with the Liberty: insufficient cargo space) and was worried somewhat that it might adversely impact my fuel economy. After three tanks, I have calculated the average MPG with the box, loaded with gear at 18.47mpg. I was actually surprised it was that good. I guess this is a testament to the aerodynamics of the cargo box, more than anything to do with the Liberty, but I thought it might be good information to post...in case anyone else is as frustrated with the cargo area of their Liberty as I was.   Btw, I was also carrying two mtn bikes on a spare tire mounted rack, as well as a good load of gear inside the Jeep.This fuel economy is very comparable to what I have been getting the last two years or so.   Interestingly, before I bought the Liberty, I was given another liberty (a 2005) as a rental, and it must have had a larger tank, and gotten better mileage. I think when i tested it, I was getting over 20 mpg, and going over 400 miles on a tank of gas. With mine, I only occasionally manage to get much over 300 miles before my fuel light switches on. I have noticed that the 2005 felt lighter and not as solid as the 2003 I ended up getting, so maybe there is a weight factor there. Replies to this message: jayrider (Jul 04, 2009 12:21 pm)
#57 of 58 Re: MPG [gpshunter] by jayrider Jul 04, 2009 (12:21 pm)
Replying to: gpshunter (Jul 01, 2009 2:00 pm) only have 26k miles on my 03. No problems -- put on a set of bilstein shocks - great ride improvement. If you 've gone 128k miles and still happy, looks like I have 25 more years of happy motoring. Mpg is low 20's on the interstate 65 mph. Short trips around town -- 15-17mpg. A little worse in winter of course.
#58 of 58 2006 liberty mpg's by jeepfreedom Sep 09, 2009 (5:17 pm)
Just bought a 2006 liberty 4x4 in august with 41,000 miles. It is a 6 speed manual.   I have now filled up 6 times. here are my mpg's   20.80 19.57 20.88 20.22 20.22 21.57 (about 90% highway)   The engine is unmodified. I do plan to switch to synthetic oil and a new air filter when the next changes are due.   I would say most driving is about a 70%/30% split highway/city but I mostly drive 75-80 MPH on the highway.

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