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SUVs Jeep Cherokee and Jeep Grand Cherokee Jeep Grand Cherokee Real World MPG
102 messages, Last post on Jan 04, 2009 at 10:46 PM
You are in the Jeep Cherokee and Jeep Grand Cherokee Forum. Your Hosts are steve_ & tidester
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Please report your gas mileage for your Jeep Grand Cherokee here (include odometer reading, driving style, city/highway mix or anything else you think may help). Thanks! Steve, Host |
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Replying to: steve_ (Jun 17, 2006 1:52 pm) Thanks |
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Replying to: offer (Jun 17, 2006 12:25 pm)
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I have a 2005 GC Laredo with the 3.7 V6. I've got about 3500 miles on it. I do about 20% City driving and 80% highway. I can get about 20mpg highway, but my city is only 7-9mpg. I've been told that it should be 13-16 when I called several jeep dealerships in the surrounding area. I don't drive very aggresively. Recently I had a Dodge 1500 Quad Cab rental with the 4.7 V8 and I got 12mpg driving city (better than my V6 Jeep)when its rated for 14mpg. I've brought it to the dealership 4 times now and everytime they say "computer says system working to specification." I also had to have major work done on the transmission. Its been very dissapointing. I don't know how much luck I'll have, but I might try to pursue a lemon law. The truck is rated for 17 by the EPA (which I know uses unrealistic and outdated testing), but 7-9 is unacceptable for a V6. I've been keeping track of my mileage since I bought the car and every time I fill up I record the mileage, %highway, gallons of gas, actual mileage, and computer mileage. I've found that if I do straight highway, the computer is pretty accurate (within .5 to 1 mpg). However, as soon as I start doing city, the computer mileage is usually too high by 10-30% (e.g. Actual 12, Computer 15.7) I've always driven SUVs and expected so-so mileage, but this just doesn't seem right. |
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Replying to: offer (Jun 17, 2006 12:25 pm) |
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Replying to: steve_ (Jun 17, 2006 1:52 pm) I use 5W-20 Mobil 1 fully synthetic oil. I keep 40-42 psi in tires and I don't gun it (well almost never). I have a 2004 Mustang GT with a 4.6 v8. It easily gets 25-26 on he highway. On the other hand, if I want to make it rip and roar, I'll get about 10. The Hemi is the same way. This engine has lots of power and it takes a lot of gas to tap it fully. Powerful v8's do not have to be pushed as hard (more gas) because of the ample torque. I think driving easy is the key along with the right oil and tire pressure. Be sure you have at least 6,000 miles on it before you expect much. But, no one buys a 5.7 4WD Jeep Grand Cherokee looking for gas mileage or at least I didn't. It still gets better, at its worst, than the Suburb. and Tahoe I had. |
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Replying to: steve_ (Jun 17, 2006 1:52 pm)
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Replying to: bdmoore13 (Jun 20, 2006 10:07 am) I think 21 is good for a 4WD jeep. |
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Replying to: steve_ (Jun 17, 2006 1:52 pm) I'm using 5-20 full synthetic and changing every 3000 miles, and thus my question. Chrysler recommends every 6000 miles on synthetic for the SRT8, but I can't find a recommended oil change interval on the 5.7 GCL--anyone know?
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Replying to: reholmes (Jul 12, 2006 5:35 pm) I use Mobil One 5-20 and I have used Mobil One in my others cars for years. Just traveled to our home in Grand Lake, CO from our home in Hattiesburg, MS pulling a fully loaded U-Haul and the Grand Cherokee crammed full. The 5.7 got nearly 19 and pulled the mountains with no effort. I am getting about 23-24+ on Interstate. It is a great car. |
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