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Old 04-05-2012, 05:14 PM   #1
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Gas mileage.

Being a Wrangler owner for many years, I wasn't surprised to find that I only averaged about 11 mpg for my first tank of gas in my newly acquired 2004 Rubicon. (It only has 13,500 miles, so it's not old age or worn engine). As I filled up, I got to wondering, why is it that Jeep never made the Wrangler a more energy efficient vehicle? It's not like they have a huge engine that can pull 5 tons. I would understand that. But with today's technology, why hasn't the mileage gone up when all around us it seems all around us that manufacturers are able to provide/improve mileage on so many vehicles. Can anyone explain this?

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Old 04-05-2012, 05:20 PM   #2
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Old 04-05-2012, 05:27 PM   #3
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When you drive a bread box it's the best they can do.
I think they could improve it alot also. Guess they don't want to make it too perfect!
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Old 04-05-2012, 05:52 PM   #4
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Being a Wrangler owner for many years, I wasn't surprised to find that I only averaged about 11 mpg for my first tank of gas in my newly acquired 2004 Rubicon. (It only has 13,500 miles, so it's not old age or worn engine). As I filled up, I got to wondering, why is it that Jeep never made the Wrangler a more energy efficient vehicle? It's not like they have a huge engine that can pull 5 tons. I would understand that. But with today's technology, why hasn't the mileage gone up when all around us it seems all around us that manufacturers are able to provide/improve mileage on so many vehicles. Can anyone explain this?
Follow the money. It's all about selling 130,000 Wranglers here in the United States vs CAFE (Corporate Average Fuel Economy) penalties, the fact that GGTs are not levied on Wranglers, and dealers can barely keep them on their lots. When Chrysler does breakeven calculations on the cost of boosting the Wrangler fuel economy, knowing they are going to sell every one of the 130,000 they build even without investing in more fuel efficiency and given that the rest of their fleet is fuel efficient enough to more than preclude any CAFE penalty, why would they spend the money?

Now, to put it simply given current circumstances...

Chrysler would not make as much $.
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Old 04-05-2012, 05:58 PM   #5
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I read the 2012's are getting better mileage.........
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Old 04-05-2012, 06:00 PM   #6
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Of I really wanted better mileage I would get a corolla.
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Old 04-05-2012, 06:10 PM   #7
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I have a love/hate relationship w/ my jeep. I also have an 04 rubicon but while it was stock I was routinely averaging 16-17mpg. After the 35's and 3inch lift I'm down to 12-13mpg. Thats AFTER I had it regeared to 5.13's. After all the money I've sunk into it getting it to look the way I want it, and I love the way it looks, I really cant afford to drive it much and show it off.
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Old 04-05-2012, 06:12 PM   #8
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When the tj came out 15 years ago gas (at least where I lived) was around 90 cents a gallon. The national average was around 1.25 A lot has changed since then. When they stopped production in the spring of 06 the national average was around 2.90 and spiked at a ghastly (at that time) high of around 3.10.
The current average 3.93, it was designed to be as efficient as it needed to be. Sadly, that doesn't do much for us now.
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Old 04-05-2012, 06:14 PM   #9
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I have a 2004 Rubicon and I get 18.8 mpg every tank driveing back and forth to work.
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Old 04-05-2012, 06:17 PM   #10
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Yes lift, tires, gears, quality of gas,and driving habits will affect mileage.....MY TJ best ever 24mpg(one time) normal highway @55mph 20-22. In town 17-19mpg.

The '12 JK in town always about 18-20mpg. On the Highway 22-23mpg. It only has 5300miles on it, expect it to get a little better in the next 5K and than settle in I hope...but if not I am okay with it. I didn't buy it for the mileage.
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Old 04-05-2012, 06:17 PM   #11
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I agree, I get 14mpg on a good fill up. I've been considering saving up $$$ for an older honda or geo that would get great MPG's and just using the jeep for the fun stuff... or I could use that $$$ to buy more jeep parts... decisions decisions.
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Old 04-05-2012, 06:20 PM   #12
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Instead of focusing on poor fuel economy I think efforts would be better put towards getting drilling approved in the gulf.
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Old 04-05-2012, 06:36 PM   #13
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Originally Posted by hammmike View Post
I have a 2004 Rubicon and I get 18.8 mpg every tank driveing back and forth to work.
Mine has a lot of extras and with those extras comes a lot of extra weight, thus the diminshed mileage. Mine is not a daily driver, simply a pleasure vehicle that is top-down and beach type stuff. If I had to drive it every day, I'd think again about it.
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Old 04-05-2012, 07:02 PM   #14
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A wrangler has the aerodyamics of a brick so gas mileage suffers accordingly.

The xj i used to have that had 215,000 miles on it got around 21 mpg with the same engine.

My tj gets 18 mpg when conditions are perfect (50 mph, no wind, ect) and on windy days like today going 70 for 215 miles i get 15.5. My average is probably around 17 usually which isnt too bad. 61k on my rubi.
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Old 04-05-2012, 07:24 PM   #15
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Originally Posted by jrussblues
Instead of focusing on poor fuel economy I think efforts would be better put towards getting drilling approved in the gulf.
our dependency on foreign oil supply is at a 17 year low, less than 50% Our domestic oil production is at an all time high.. if current trends continue, we will reduce our dependency on foreign oil down to around 30%. During the Bush years our dependency was at 60%. I'd say we are on the right track. Woefully, instead of keeping our own oil, the producers are permitted to place it into the world market, and speculation investors have driven the cost up. We are currently exporting 3.1 million barrels per day of refined oil products, gasoline, diesel, MEK, and other distillates .. At the same time, Gulf of Mexico drilling permits are at higher levels than they were previous to the spill.. Please, if you're going to make off the cuff remarks, at least know what your talking about. Lack of oversight of the oil companies and of wide open free market speculation lies at the heart of the continual fluctuation of what we pay at the pump... BTW, when I fill up, three times a week, it is currently a bit over $2,000 a week to keep this truck on the road.. At that cost I pay very close attention to the whys and wherefores of gas and diesel prices. Trucks in the US use more petroleum products than the next seven industrialized nations combined..
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Old 04-05-2012, 07:30 PM   #16
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i must be the odd one in the group-i did get mine for the mileage-the 18-21 i get with it beats the 12-14 i get with my 2500HD. the jeep is my DD and the truck has been deligated to towing duty
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Old 04-05-2012, 07:43 PM   #17
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Quote:
Originally Posted by Rubicondon53

our dependency on foreign oil supply is at a 17 year low, less than 50% Our domestic oil production is at an all time high.. if current trends continue, we will reduce our dependency on foreign oil down to around 30%. During the Bush years our dependency was at 60%. I'd say we are on the right track. Woefully, instead of keeping our own oil, the producers are permitted to place it into the world market, and speculation investors have driven the cost up. We are currently exporting 3.1 million barrels per day of refined oil products, gasoline, diesel, MEK, and other distillates .. At the same time, Gulf of Mexico drilling permits are at higher levels than they were previous to the spill.. Please, if you're going to make off the cuff remarks, at least know what your talking about. Lack of oversight of the oil companies and of wide open free market speculation lies at the heart of the continual fluctuation of what we pay at the pump... BTW, when I fill up, three times a week, it is currently a bit over $2,000 a week to keep this truck on the road.. At that cost I pay very close attention to the whys and wherefores of gas and diesel prices. Trucks in the US use more petroleum products than the next seven industrialized nations combined..
Love it...the oil companies domestically (at least the big three) are currently pumping out about a quarter to half of their capacity from the gulf from existing rigs.
Why?... Because since the lift of the moratorium two...yes only two rigs have been approved to drill. Yes, before you ask, there are a stack of applications sitting on the desk in new Orleans.
The oil company answer to the bureaucratic handling is to simply cut supply and drive up the price until someone gives in.
I know its not in the news, but that is the the reality.
Unfortunately foreign oil has nada to do with the price of gas. Neither does world trading, foreign markets or really anything else. The root cause comes down to a stack of papers sitting on a desk that nobody will sign off on. Sad...isn't it.
Everything else is spin.
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Old 04-05-2012, 07:52 PM   #18
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It's my understanding that 400 +/- permits have been signed off on.. More than before the spill.. Whom is not acting on them?
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Old 04-05-2012, 07:57 PM   #19
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The only way to make it more fuel efficient, outside of a diesel engine, is to make it less Jeep-like. That's the direction it's been heading for a while now anyway. The windshields are more angled in successive generations as are the grills. Slowly but surely, the Jeep is becoming just another soccer mom SUV.
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Old 04-05-2012, 08:12 PM   #20
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Yeah, aerodynamics are definitely not the Wrangler's strong suit, but look how little the basic design has changed over the years, until around '08. Just goes to show that the design is classic and well-loved. They don't need to change it, but they are like, s14sh3r said above.

As far as feul economy, most folks would say I was stupid to do what I did. I had a 2001 60th Anniversary Wrangler and sold it when gas got up to around $5.00 last time. I traded for a Dodge Caliber SXT and was getting around 25-30mpg, but I was unhappy. I drove the Caliber for two years before I couldn't take it any more. Just traded it for my new baby on March 16, 2012. I am so happy to have another Wrangler that I can't stop looking out the window at it, or walking out to it and just opening the door and standing there just to look at it. My mileage went from great to not-so-good, but i am MUCH happier paying my hard-earned money for something I know I will love and cherish till death do us part!

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Old 04-05-2012, 08:13 PM   #21
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Originally Posted by Rubicondon53
It's my understanding that 400 +/- permits have been signed off on.. More than before the spill.. Whom is not acting on them?
I spoke with a guy that works with the metering at the mardi grad pipeline about a week ago. Before that I had many of the same thoughts you did. Which, logically contradict themselves looking back on it. There have been plenty of submissions, but I was shocked to hear there were only 2 signed off on. He explained the rest. My initial thought was that the companies are in essence screwing themselves out of money. He went on to explain that the rigs cost nothing to run because they use the natural gas coming out of the ground to power and run the rigs. So essentially the cost is 0 minus labor (which is negligible considering the profit margins). His concluding remark was "you don't **** with oil companies. They control the one product that is in or used in the manufacture of 99.9 % of everything that consumers use" I found it at disheartening but it is sadly true when you think about it.
As for who is not signing off...I would look more into who is making sure it is not signed off. I don't like political conversation and I don't write anything to be inflammatory period, nor am I a political person...at all. What I can tell you is that big business (who control jobs) is making a big play to keep Obama out of office. That counts for all industries that supply jobs. Again, not meant to be inflammatory or take sides in any way. Simply what I have seen with my own eyes.
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Old 04-05-2012, 08:18 PM   #22
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I don't know why you guys are complaining, you want to try the prices here for gas. Our price right now is $2.199 per litre, multiply by 3.8 for gallon price.
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Old 04-05-2012, 08:21 PM   #23
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I don't know why you guys are complaining, you want to try the prices here for gas. Our price right now is $2.199 per litre, multiply by 3.8 for gallon price.
Because its not necessary and I drive over 3000 miles a month.
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Old 04-05-2012, 08:23 PM   #24
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i'm thinking of the diesel conversion but what engine should i go with.
i'm averaging 13-15 in mine
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Old 04-05-2012, 08:45 PM   #25
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Maybe we should be complaining that bread, apples, cheese, oranges, potatoes, wine, electricity, water, natural gas, trash removal, and apartment rental are all less expensive in NZ as compared to the US.*

*Source: Numbeo.com
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Old 04-06-2012, 09:54 AM   #26
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i'm thinking of the diesel conversion but what engine should i go with.
i'm averaging 13-15 in mine
HPA motorsports is bragging 25 to 30 mpg using a VW TDI... It all looks good on paper but I have found no one that has done this swap.. Cummins 4BT is another, but that swap turns a TJ into a MONSTER jeep. Chevy small block LS1 is a popular swap, and real world says 18 to 21 mpg..
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Old 04-06-2012, 09:55 AM   #27
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Quote:
Originally Posted by danatkins
i'm thinking of the diesel conversion but what engine should i go with.
i'm averaging 13-15 in mine
The money you'll save on gas will never offset the cost of installing a diesel in your jeep...buuut if you wanna do it anyway the cummins 4bt is the most popular diesel swap.

And can we not get into a politics pissing match on a gas mileage thread once again? Its off topic and quite boring. Lets stick to the topic
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Old 04-06-2012, 10:35 AM   #28
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Originally Posted by cjtheodo View Post
I have a love/hate relationship w/ my jeep. I also have an 04 rubicon but while it was stock I was routinely averaging 16-17mpg. After the 35's and 3inch lift I'm down to 12-13mpg. Thats AFTER I had it regeared to 5.13's. After all the money I've sunk into it getting it to look the way I want it, and I love the way it looks, I really cant afford to drive it much and show it off.
x2 - i just bought my first Wrangler 2 months ago and did not like the look of it stock (i was getting about the same mpg as you were (around 17-18mpg). Now i have since installed a combo lift and put on 33x12.5's and now have plummeted to around 11-12mpg. I am looking at getting regeared to 4.56 - would this help improve gas mileage at all?
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Old 04-06-2012, 10:42 AM   #29
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x2 - i just bought my first Wrangler 2 months ago and did not like the look of it stock (i was getting about the same mpg as you were (around 17-18mpg). Now i have since installed a combo lift and put on 33x12.5's and now have plummeted to around 11-12mpg. I am looking at getting regeared to 4.56 - would this help improve gas mileage at all?
did you properly recal your odo and do hand calcs at the pump to validate your before and after mod mpg?
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Old 04-06-2012, 10:48 AM   #30
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did you properly recal your odo and do hand calcs at the pump to validate your before and after mod mpg?
I did not recalibrate my odometer

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