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Old 12-07-2011, 12:29 PM   #31
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If you are looking for good city milage in stop and go traffic:

1) get a hybrid
2) get an electric
3) get a car with electronic aids like engine shut down when stopped or do it yourself.


Jeeps really aren't designed to be or bought by informed buyers as high milage commuter vehicles. They are good at "jeepy" things.

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Old 12-07-2011, 12:38 PM   #32
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If you have a manual, shift at 2,000 rpm and drive like grandma. I get 19 in the city that way and I don't even have the JC engine

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Old 12-07-2011, 12:45 PM   #33
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B&C is correct. It's the average variation that determines the case. 50% is wayyy outside the window. You could literally floor it from light to light and still do better than 10mpg in these vehicles in city traffic, assuming you aren't stuck in traffic idling for 20 minutes at a time for every 5 minutes of drive time.
Which is entirely possible for the person complaining about 10 mpg. If their profile is correct, they live on Long Island. Most driving in metro NYC is going to have MPG ratings on the low end of the averages.

The EPA ratings are not absolutes. They do not take into account various driving conditions. They are a guideline.
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Old 12-07-2011, 01:03 PM   #34
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But here are laws limiting the amount of variation.
Interesting. Which law is that exactly?
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Old 12-07-2011, 01:08 PM   #35
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Can't remember the name but on the MINI forum a few members went through the same thing and won their cases.
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Old 12-07-2011, 01:12 PM   #36
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Can't remember the name but on the MINI forum a few members went through the same thing and won their cases.
I'm sure that they did, but there is no "law". If the gas mileage is that bad then you have a good case to take it in under warranty; they plug it in; determine which sensor(s) or component(s) is/are bad and the vehicle is repaired. Our Mini happens to get 40mpg hwy. Our Rubi maybe 20 on a good day with a tail wind.
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Old 12-07-2011, 01:19 PM   #37
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Originally Posted by Pomz623 View Post
Ima just keep driving like normal for now. if there inst anything i can do or even check, then I guess im just shit outa luck.
About a week ago, on another thread on the same subject, I suggested the following to you:

Quote:
Originally Posted by Up Hill Bill
"heyray" had the same problem with his 2012. He reported that, after following the dealers recommendation to disconnect the battery, his mileage went from 12.5 MPG on an 800 mile highway trip, to 16 MPG city!

12.5 mpg highway Really?
12.5 mpg highway Really?

Disconnecting the battery (and turning on headlights to discharge the capacitor that helps retain memory) should dump your on-board computer's memory and give you a fresh start.
And you replied:

Quote:
ima do this later and see what happens...
Have you tried this yet, and did it have any effect?
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Old 12-07-2011, 02:27 PM   #38
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I'm sure that they did, but there is no "law". If the gas mileage is that bad then you have a good case to take it in under warranty; they plug it in; determine which sensor(s) or component(s) is/are bad and the vehicle is repaired. Our Mini happens to get 40mpg hwy. Our Rubi maybe 20 on a good day with a tail wind.
Wow, I never even got remotely close to 40 mpg with my Mini!

Although, I had the turbocharged automatic, and my average speed of travel was somewhere north of 80 mph.

It's much slower now.
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Old 12-07-2011, 02:38 PM   #39
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City driving is tough on fuel. Plus, brand new mileage WILL improve after a few tanks. Be patient but be realistic. Jeeps make up for bad mileage in other ways.
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Old 12-07-2011, 02:58 PM   #40
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Quote:
Originally Posted by Ballandchain
Can't remember the name but on the MINI forum a few members went through the same thing and won their cases.
Well, that's a different story. If you read it on the internet it automatically becomes a law. All the OP needs to do now is show this thread to the judge.
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Old 12-07-2011, 03:07 PM   #41
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Come on man, I'm not trying to be a smart ass about the subject.......
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Old 12-09-2011, 11:46 AM   #42
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well, I just got back from a 8 hour and 450mile round trip from Long Island to Boston. reset the computer at the start of the trip, was pretty easy on the gas. Came home, pulled in to my drive way and the computer read ~17mpg. i think thats pretty low. Engine now has about 1200 miles on it. 17MPG on almost 100% highway? I dont know. seems very low to me.
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Old 12-09-2011, 12:06 PM   #43
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Originally Posted by Maltesefalcn View Post
Wow, I never even got remotely close to 40 mpg with my Mini!

Although, I had the turbocharged automatic, and my average speed of travel was somewhere north of 80 mph.

It's much slower now.
Yeah, I only got 29ish in my 09 MCS but that isn't as far off from the 32 on the sticker...And I drove like an idiot in that thing....
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Old 12-09-2011, 12:10 PM   #44
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Quote:
Originally Posted by Pomz623 View Post
well, I just got back from a 8 hour and 450mile round trip from Long Island to Boston. reset the computer at the start of the trip, was pretty easy on the gas. Came home, pulled in to my drive way and the computer read ~17mpg. i think thats pretty low. Engine now has about 1200 miles on it. 17MPG on almost 100% highway? I dont know. seems very low to me.
Just curious how fast were you going?
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Old 12-09-2011, 12:27 PM   #45
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Originally Posted by Pomz623 View Post
well, I just got back from a 8 hour and 450mile round trip from Long Island to Boston. reset the computer at the start of the trip, was pretty easy on the gas. Came home, pulled in to my drive way and the computer read ~17mpg. i think thats pretty low. Engine now has about 1200 miles on it. 17MPG on almost 100% highway? I dont know. seems very low to me.
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Just curious how fast were you going?
LI to Boston round trip. How much of that time would you estimate was in stop and go traffic? I realize you said "almost 100% highway" but I've driven 84 and 95 through Connecticut, there aren't many places that don't get crazy busy in that corridor.

17 is pretty good for that trip. I averaged 18-19 on the display in mine before the lift was put on, and I live in a much less densely populated area.
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You kids are probably saying to yourself, "Now, I'm gonna go out, and I'm gonna get the world by the tail, and wrap it around and put it in my pocket!!" Well, I'm here to tell you that you're probably gonna find out, as you go out there, that you're not gonna amount to Jack Squat!!" You're gonna end up eating a steady diet of government cheese, and living in a van down by the river!
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Old 12-09-2011, 12:37 PM   #46
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Just curious how fast were you going?
most of the ride 65 was the speed limit, so i would say over 65-70

Quote:
Originally Posted by LaTuFu View Post
LI to Boston round trip. How much of that time would you estimate was in stop and go traffic? I realize you said "almost 100% highway" but I've driven 84 and 95 through Connecticut, there aren't many places that don't get crazy busy in that corridor.

17 is pretty good for that trip. I averaged 18-19 on the display in mine before the lift was put on, and I live in a much less densely populated area.
probably like 20 miles of it. i went straight from home to the airport and back.
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Old 12-09-2011, 12:41 PM   #47
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Quote:
Originally Posted by Pomz623

most of the ride 65 was the speed limit, so i would say over 65-70

probably like 20 miles of it. i went straight from home to the airport and back.
If you were doing 55 and under you would have been much closer to the epa estimates. (And they are in fact estimates as opposed to the actual numbers you get)
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Old 12-09-2011, 01:15 PM   #48
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So many factors can affect your gas mileage. The fact that it is a new vehicle means it has not even been broken in yet. During that time not only will your gas mileage suck but you could also go through some oil. Hmm, maybe I shouldn't have said that. Now people will be asking the dealers to replace the motor due to oil consumption....anyway.....

If you have jack rabbit starts, aggressive driving, etc that will also lower your mileage. I have an 05 Mustang GT and if I baby it I can get a combined 28MPG city/hwy driving. However if I drive it like I stole it I only get a combined 19MPG. The only time I ever get the 36MPG highway that the window sticker shows is if I hit the highway at 100 kmh and then reset the mpg counter. It will show 36MPG for a min and then start to drop. Doing the same thing in the Jeep would result in similar results.
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Old 12-09-2011, 02:58 PM   #49
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Originally Posted by Pomz623

most of the ride 65 was the speed limit, so i would say over 65-70

probably like 20 miles of it. i went straight from home to the airport and back.
Then you are right on track. 70 mph is not the most fuel efficient speed. Combine that with 20 minutes of city traffic and you did very well to average 17.
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Old 12-10-2011, 01:07 PM   #50
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I just relized your on Long island....Are you commuting into NYC daily? going 5 MPH down the L.I.E. to work or home daily will NEVER let you see better than 10 MPG. GET A BIKE!
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Old 12-10-2011, 04:06 PM   #51
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I just relized your on Long island....Are you commuting into NYC daily? going 5 MPH down the L.I.E. to work or home daily will NEVER let you see better than 10 MPG. GET A BIKE!
no i dont go to nyc, but my ride to work is alot of stop and go though.
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Old 12-10-2011, 05:31 PM   #52
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So I've been getting around 10-11 mpg. My driving is 100% city driving on long island. I've been trying to be as easy as I can be. But obviously that does not help. I have about 700 miles on the jeep so far. One odd thing I noticed earlier. I reset the computer about a block before stopping at a red light. When I stopped It read about 5mpg and as I was at a dead stop it continued to drop to about 3mpg. As I drove home the highest I was able to get was 16.5 but that was only during a mile or 2 straight away. Yet I continued to notice that everytime I was stopped at a red light no matter what number it was on, it started to decrease in mpg. If im sitting at a stop. Why is it dropping in mpg? This is my 3rd fill up. I have about 180miles on this fill up and its telling me I have about 30 miles left. There has to be something wrong. And yes I am trying to drive as easy as possible.
Maybe you should have bought a Chevy VOLT
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Old 12-10-2011, 11:16 PM   #53
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Maybe you should have bought a Chevy VOLT
Ha. I don't really care about the gas milage. I was just concerned that something might be wrong and its brand new.
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Old 12-11-2011, 12:01 PM   #54
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Go to the fueleconomy.gov site and see how mileage is actually determined. There are no guarantees, they only use one vehicle model
(Not every vehicle is tested. Manufacturers are required to test only one representative vehicle for each combination of engine, transmission and loaded vehicle weight classes), they say every vehicle has a range for city and highway driving and they estimate only about 14% - 26% of the gas you put in the tank goes towards moving your vehicle down the road.

They also state
So, please remember that the EPA ratings
are a useful tool for comparing vehicles
when car buying, but they may not
accurately predict the MPG
you will get.



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