Gas Mileage
 

Hi,

I'm new to the Jeep world.

I just purchased a 2010 Mountain Edition. I've only had it for 2 days now and i find it's really terrible on gas.

Is this just because it's new, or should i expect the same for as long as i own it?

There is only 711 km's on it at the moment. Full tank last night and 211 km's later i'm already down 1/2 tank.


Will this get better after the motor is broken in?

Thanks for the advice.

Re: Gas Mileage
 

Welcome to the wonderfull world of Jeeps, congrats on your new ride!!
Don't forget to wave!

Well....one doesn't buy a Jeep for it's MPG or L/100, it's assumed it won't be that of a Honda Civic.
You should do better once you get a few KMs on your ride, I recall that was the case with mine when new. Right now with a 08 JKU, Auto, 3:73, and bone stock, with or with out air, top up, loaded on the highway I avergae 23 MPG as per the dash calc, and it drops to 19 ish in town. (have yet to calc with out the dash read out)

I cut out a few things in my daily budget to help fund fuel....to me it's worth every penny, get to drive Jeep and enjoy all of it's benifits.

We all have our vices.

Happy Jeepin!

Re: Gas Mileage
 

the above is exact,dealership i bought from warned me and even with standard shift, fuel economy is still not good --welcome to jeep world .Mine is a wrangler sport standard shift 2010 with 2600km and i get poor fuel economy
But love the jeep

Re: Gas Mileage
 

420km on a full tank of gaz.
But i'm riding on 33's
When I was riding stock I did 500km on a tank
I drive a 09 Wrangler X

Re: Gas Mileage
 

Thanks, I'm hoping to get at least 500 out of a tank. i currently ride on 32. pretty much the same as the rubicon, but without all the fancy stuff.

i'll keep you posted as my new adventure continues.

and i won't forget to wave.

Re: Gas Mileage
 

:banana: You mean you have the 4-1 xfer case/e-disco sway bars/lockers front&rear/4.10 diff gears and your getting lousy mileage ??


I'd take it back to the dealer--

You may have already switched to winter gas in Canada and that makes a diff-

Good luck

:3gears: JIMBO

Re: Gas Mileage
 

I still have the 3:73 in it, but the look is like the Rubicon. All the i have is 17 inc rims, 32 inch tires, and air condition. That's it.

It's basically a sports package with the bigger tires. "Mountain Edition" It has the same rims as the rubbicon, and same tires, but that's it. no power locks, no power windows.

It's a sports package with a bit of fluff on it.

and it's automatic.

Re: Gas Mileage
 

:banana: Mine is an '08 Rubi, with 33.6" Hankooks and 4.10 gears and I get avg 16 mpg on the Nevada freeway-


Mines an auto also !!
http://i294.photobucket.com/albums/m...owby/002-3.jpg

:3gears: JIMBO

Re: Gas Mileage
 

That is one sweet looking ride.

I just hope mpg's get a tad better. i do approx. 110 kms a day on the highway 90 to 100 km's an hours

I'm not complaining, i just didn't think they were that bad with the advertised listing of 27mpg

Re: Gas Mileage
 

:SELLIT: Heh Heh, Well I bought mine in OCT of 08, in Richmond Ca. and in it's stock condition it was getting about 19 mpg--


Now after all my mods and moving the jeep to 4200 ft (Nevada) it avg about 16 mpg and I think the computer (ECM) has adjusted for the altitude and helped with the mileage--

I would give it a couple thousand miles to see if it improves--if not have your dealer "flash" the computer (warranty) and see if that helps-then, if not, you might buy a SUPERCHIP FLASHPAC , $350 bucks(:confused::confused:), they seem to help with mileage and auto shift points-Google it

I don't have one, I have the AEV Procal Module, that resets speedo and disables the TPMS icon/chimes and other things

Good luck

:3gears: JIMBO

Re: Gas Mileage
 

Thanks,

Like you say, i will give it a few 1000's km before going to see the dealer. This shouldn't take to long as i usually drive 2000 a months to and from work

Re: Gas Mileage
 

211 km with half tank sounds about right.

I've had mine for about 2 months now with 5000km (mountain edition as well) and it's been the same. But I have been doing very little highway driving, but when I do it goes from 14L/100km (local) to 12.1L/100km (hwy).

Gas consumption is a killer....but I knew what I was getting into and well worth the extra cost (came from a little Toyota 4cycl). Just thank the fact that it doesn't need 91 octane like some other cars do.

Re: Gas Mileage
 

i hear ya on that one.

Has anyone ever come close to the 27mpg they advertise.

So 500 on a tank is what i should expect.

Re: Gas Mileage
 

you bought a jeep! if you wanted good fuel mileage you should have bought a Prius and you could talk about saving the planet instead of driving off road and enjoying it.

Re: Gas Mileage
 

I am actually quite impressed at the mileage i get with our 2010 unlimited sport. We get around
280-300k's on a 1/2 tank.Currently I've got 260km on the tripmeter and 373 on the dte. When I figure out the mileage, its 24 per imperial gallon. {i'm still old school} Its 1 1/2 months old, 4400kms, and it never really changed much so far. I do notice it makes a huge difference the way you drive. I use cruise all the time, and city driving is a killer.
The couple of bucks more per fill up is well worth it vs driving a corrolla and looking up at the Jeeps going by!!

Re: Gas Mileage
 

The Mountain package does come with the 32 "M/Ts" identical to that of the Rubi, were my Sahara is rolling on the stock 32 "A/Ts". The M/Ts will eat into your MPG as they are a more agressive tread pattern with less 'rolling resistance'. Other then that we have the same Jeep.....2:71 T case, Auto, 3:73 gearing (I opted for the Limited Slip Track lock in the rear) front is open. My daily driving in lovely GTA traffic is 65KM each way.

The skinny pedal is also a key factor in MPG, keeping your foot out of it and 100Kph, seems to be that magical 2,000RPM....seems simple but it really makes BIG difference. Try it with the fuel enco calc on the dash.....and vary your speed.:3gears:

Re: Gas Mileage
 

I must say ever since i've purchased my Jeep, my driving habits changed drastically. Since I enjoy the drive more, i've slowed down and started to drive in a civilized manner! I agree with the 2000RPM....it's more efficient than 1500RPM (hwy driving). So 2000RPM is the the magic number!

Re: Gas Mileage
 

I have a 2010 Rubi unlimited with the towing pkg (4.10s).. i get about 13.5L/100km so between 500-600 kms on a tank, average mostly city some highway driving.. but its a manual.. it gets a bit better after you break her in a little... congrats on the buy

Re: Gas Mileage
 

I have a 07 Jk Unlimited x with 35's and 4.10 gears and I get about 550 to 600 kms to the tank. I installed a Cold air intake and a Banks power exhaust. The Mileage didn't really get better till I purchased a Superchips flashpaq. The restting of the tire size made all the difference. The tranny shifts at the same rpm as stock and greatly improved the mileage.

Re: Gas Mileage
 

I've looked into the Superchips and others and was told in other forums I've read that they are a big waste of money. I've installed a K&N intake and put cat back duals noticed minimal fuel improvement but like the performance and sound. Pator how much of an increase did you get with the chip?

Re: Gas Mileage
 

I went from getting 350-375 kms to a tank to 550-600kms to a tank.
performance wise i didn't notice any more power but the transmission shift points were raised up the rpm range. This makes the jeep drive way better and the tranny isn't always kicking in and out of overdrive and hunting for the right gear to compensate for the 35's.

Re: Gas Mileage
 

Thanks pator, I'll look into the Superchip.

Re: Gas Mileage
 

Wow. Had I beleived the rubi would be that efficient I would have given one a second thought. My 2010 Sahara Unlimited hits about 620hwy (550city). Mine is 3:21. I'm thinking changing over to 3:73 if it's not too much of a hassle. Should I expect a significant increase in gas consumption? I wanna do some towing next year. If this is the wrong place to ask I apologize. Also wondering how much is involved with changing gears. I'm a little green here. thanks

Re: Gas Mileage
 

Wow on my 2009 Sahara with 3.73 and 35s I'm lucky if I get 300kms out a full tank of gas! Although the way the gas tank has been taking hits this year its probably a bit smaller than the rest of yours lol. Oh well its my Jeep and I love it and I have a good job so I dont really care how much gas I have to put into her :D

Re: Gas Mileage
 

Well, mine is 60L. and it hasn't taken any hit yet. probably some to come, but that under platting might have a thing to say about that.

Re: Gas Mileage
 

I also have a 2010 Mountain edition. I have the the Air raid cold air intake and Borla Exhaust. Its has the 6 speed manual. I get 510 km Per tank. It costs me 65 Bucks to fill up from emty. Thats driving in the city.

Re: Gas Mileage
 

I've got a Rubicon and at approx. 4500 lbs. and 4.10 gears I knew it wasn't going to be eco
friendly...but try going out and hugging a tree in a forest with a Prius! 20 mpg (US gal) driving combination hwy and city. Put your foot into it and you can watch the fuel gauge
go down like the Titanic.

Re: Gas Mileage
 

Well, i must say it got a bit better. I average about 22mpg per tank. not bad.

Re: Gas Mileage
 

Have a look at my previous post, since the JK is my wifes daily diver, I've yet to get a sense of how many K's per tank. But I do track the eco meter, and I'm getting that 22 to 23 MPG, or aprox 9 L/100. Again, that's hwy driving....seen it jump up to average of 13 L/100 in the city.

Re-gearing is a big job, and since both the front and real axles are geared the same, you will need to do both of them. The diff cover is removed, the carrier is removed from the axle. If you are re-using (I think you should be able to) exisitng differential and not upgrading to a Limited Slip (aka Track Loc) or some kind of locker, the ring is removed and your new 'gear set' is installed. Re-install and top up with fresh axle lube. Repeat on the front.

Your computer will need to be re-programing since your axle is shaft is now making more revolutions (3.73 : 1 vs 3.21:1)

That's kind of a high level view.

Good luck

Re: Gas Mileage
 

You've gotta remember that the Rubicon has a bigger fuel tank.

Re: Gas Mileage
 

Im sure you didnt buy a jeep for fuel economy .lol its like pushing a Mac truck down the road. We buy jeeps to play in the mud and have fun.

Re: Gas Mileage
 

You made me check the 2011 specs...the 2-Doors have a 70L and the Unlimiteds have 85L tank

Hmmm

Re: Gas Mileage
 

If you want to save some gas, get yourself a set of 5 tires and rims. The tires should be thinner and made of a hard rubber compound. Right now your tire is a LT255/75R17 and gets 661revs/mile so you just have to find a tire that gets close to that. A tire calulator will help.
And you'll just have to swap them on friday after work to go play :)
Don't forget to wave!

Re: Gas Mileage
 

It takes about 3000 k for the trans computer to adapt, but I never noticed a difference in mileage. I get 10-11l/100 km if I drive with eco on, at speed limit, no passing, from Ft. Mcmurray to Kamloops. With my current 4.10's I get no better than 14l/100 km from kamloops to Hope. Around town, I have no idea, I've yet to go a full tank without hitting the trails. 4 low burns lots of gas. I saw it at 22/100 km once, after filling up, resetting the comp and hitting the road. Weird, because it only took 3 hours to go 6 km.
So 9 to 22 mpg is average

Re: Gas Mileage
 

Sorry Friend but it doesn't take 3000km. The TCM witch is part of the PCM learns shift point with in a few km. And continues to adapt all the time for the life of the transmission.

Re: Gas Mileage
 

Well,i'm going to call the dealership to see if they can Flash the computer to reset it.

after 15000 km's, i avereage out at 14L / 100 km's and 13000 Km's is all highway driving between 90 and 100 km/h

The best being at 12.7 l/100km one tank only.

will keep you posted

Re: Gas Mileage
 

Damit mine suck now. Stupid lift. 15l per 100kms

Re: Gas Mileage
 

Really anybody that says gas mileage and Jeep in the same sentence, shouldn't own one. Lets see...Shaped likea brick then we lift then...install bigger tires and Guess what - the gas mileage sucks. I have driven Jeeps since I was 16 and one thing that is same in all of them the gas mileage isn't great...... You buy a Jeep for what it is a vehicle that will take you anywhere. You want great mileage buy a Jetta diesel.

Re: Gas Mileage
 

I'm running a stock '10 JK Sahara 4door manual trans. When I first bought it I was running about 19.5L/100km. A short time ago I changed my driving style (read: I stopped driving it like a sport car) and went from regular gas to premium. Now I try and keep my RPMs to no more than 1500. I'm on my 3rd tank of premium (not super, I'm not that rich ;) ) and the average mileage is ready 17.0L/100km as of this morning. I have almost 7000km on my jeep. This is all in town driving so I never really get above 80-90kph. If I can get it down by 1-2L/100km more I'll be happy.

I hope that this helps you out.

Re: Gas Mileage
 

I drive 130 km per day with my 2011 Sahara Unlimited, 6 speed manual.
(30 minutes in town, 1.5 hours highway)

I am averaging 11.5 L/100km according to the dash. Driving 85-100km/h mixed highway. (Highway 7 Near Peterborough)
When I reset it on the highway, I get 8.5L/100km while driving at 85km/h (but its the small towns it goes up to 10.5>11.5)

We try to keep it in 5th in town, and 6th on the highway.