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Jeep Grand Cherokee Real World MPG

102 messages,  Last post on Jan 04, 2009 at 10:46 PM

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

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#98 of 102 Re: My first Cherokee...mpg really that bad? [tacis72] by verdugo Jun 14, 2008 (12:56 pm)
Replying to: tacis72 (Jun 14, 2008 8:30 am) Freeway at speeds between 65 - 80 mph I averaged about 14 mpg max.   Let me get this straight. You run your HEMI at up to 80 mph and you complain about bad mileage?   Seriously, not sure what else you could expect at those speeds. Stick to 65mph and see your mileage improve.
#99 of 102 Re: My first Cherokee...mpg really that bad? [tacis72] by naatz1 Jun 16, 2008 (9:48 am)
Replying to: tacis72 (Jun 14, 2008 8:30 am) You can read some of my posts earlier this Spring around #85-86: I have the 07 & 4.7L nonhemi V8 and did testing with E85 and 87 octane gas. E85 saves me money but I am back to gas since the price differential has narrowed and even in the midwest now that I am towing my boat (a nice small torquey V8 boat puller I might add) it's harder to find E85 in random small towns. Your hemi is only rated 1 mpg less than my 4.7 but with the system that cuts it to 4 cylinders on flat highway driving (MDS?) I have friends that claim they are getting 20mpg at 70mph with their Jeep hemis. I just checked my Jeep last week on a fairly level stretch of I-90 and in 40 miles got 20.0 mpg (no wind, not using AC). You should be able to get about that if you hold it to 70mph on a nonwindy day, no AC. In Wisconsin where the interstate is 65mph I actually drove that speed and got 22mpg. Speed kills gas mileage but I am sure unless it really gets bad like it did in the 70s any thoughts of a 55 or 60mph limit will cause riots in the streets .... now for in town or suburban you can expect to get low teens, I get around 14-15 in what I'd call suburban driving.
#100 of 102 Anyone have real world MPG on 2008 4.7L with 4WD? by cmdr17 Dec 21, 2008 (12:10 pm)
I am considering buying a 2008 Grand Cherokee 4WD with the 4.7L. I read how Jeep made some small tweaks from the 2007 model year to improve fuel economy while boosting horsepower pretty significantly.   I live in Chicago and will probably be doing mostly city driving.   Thanks!
#101 of 102 2000 Jeep Grand Cherokee 4.7L Limited by jeep4life0604 Jan 04, 2009 (6:48 pm)
I have a 2000 Jeep Grand Cherokee v8 4.7L with 160,000 miles on it. I recently took a road trip and pushed 26.5mpg out of it on all highway. I divided my gallons by how many miles I drove and it matched up. If I do normal driving I get anywhere from 17.5 - 18.5 mpg depending how much stop and go I do... I have noticed that changing my spark plugs every 35,000 miles and changing the fuel filter about every 20,000 really goes a long way in boosting my fuel mileage...   *** I do not have the all wheel drive model, I have the Selec-Trac which is able to go either from 2WD or 4WD... with 4WD I get around 11 - 13mpg.
#102 of 102 00 Grand Cherokee I-6 by uscJeepGirl Jan 04, 2009 (10:46 pm)
I have the 2000 Inline 6 and i get great gas millage. My commute its bout 50/50 city/highway and off road couple times a month, and the computer in the Jeep says I get 19 MPG. I am not a slow driver by all means. I was around 21 MPG til I went over 120K miles im at 153K now and its still running fine. A few things have went bad, had to replace the fan assembly, and 2 tie rods and a part of the steering column from off road driving but thats a given some times. but just regular maintenance oil, trans fluid, and coolant and mine runs fine. For a 4x2 my Jeep can scare a few 4x4s. I can stay in line with them and still not break the bank at the pump, i really do not see why ppl think the 4x2 is so bad same set up as the 4x4 just smaller engine and front wheels are not engaged. and i love my inline it is such a smooth engine.

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