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Old 09-29-2011, 10:43 PM   #1
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How many MPG's will i lose with 33' tires

I'm average 23-24mpg on the way to work....how much will lose if I put on 33' tires?

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Old 09-29-2011, 10:46 PM   #2
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Quote:
Originally Posted by xcantuaj
I'm average 23-24mpg on the way to work....how much will lose if I put on 33' tires?
33' huh. Those are some big tires.

Are you going for the Gravedigger look or the Bigfoot look?

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Old 09-29-2011, 11:05 PM   #3
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If u r getting 23 2 24 MPG u better not change a gddam thing!
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Old 09-29-2011, 11:07 PM   #4
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I wanna see these 33' tires. I suspect with stock gearing you will lose about 23.9 MPG.
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Old 09-29-2011, 11:17 PM   #5
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You could sale that one to science and buy two more with the profits if your getting 24mpg to work because you have something no other wrangler has ever been able to do other the a Diesel
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Old 09-29-2011, 11:36 PM   #6
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Lol i barely get 20 on the highway. And im completely stock and brand new. Ill trade ya
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Old 09-30-2011, 06:38 AM   #7
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In all seriousness, it's going to depend entirely on the width and tread design. A good guess would be 2 to 5 MPG. It could be more, but I doubt it would be less.
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Old 09-30-2011, 07:00 AM   #8
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I'm running 33" GY Duratrac's. My MPG stayed the same as stock.. But .. I also switched out my stock "steel" wheels for "alum" MB72's. so my stock wheels and tires were actually heavier than my 33" duratrac's and MB72's?? however right after I put my lift on the MPG's went down by 2 MPG's.... 2011 sport 2door.. 3.21 gears... Thats my experance. Now to answer your question it all depends on what kind of 33's u get? Diffrent brands means diff weights and tread pattern's ect. BTW congrats on the 23-24 mpg..
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Old 09-30-2011, 09:16 AM   #9
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^ Yep.
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Old 09-30-2011, 09:39 AM   #10
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Weight kills!

The October issue of JP Magazine does a good dyno comparison between two similiar tire / rim combinations in regards to weight differences causing power loss & gas mileage loss. Certainly worth a read! A little weight difference between different 33" tire and rim combinations is a big deal!
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Old 09-30-2011, 10:46 AM   #11
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I commute 100 miles per day all highway and currently have 29" tires. I'm only getting 19 mpg. What wheels and tires are you running now? 29" or 32"? Great mpg
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Old 09-30-2011, 10:54 AM   #12
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Quote:
Originally Posted by TheAxe

33' huh. Those are some big tires.

Are you going for the Gravedigger look or the Bigfoot look?
Rofl
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Old 09-30-2011, 11:22 AM   #13
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I lost about 1.5 MPG when went from stock to 33" duratracs....
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Old 09-30-2011, 12:01 PM   #14
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Angry DO your research

There is a ton of data out there!

1. Get a GOOD 4x4 shop to do the install
2. Get them to do a Road-force balance, NOT the ole spin-balance
3. There WILL be noticable power & mpg loss
4. Unless you are going to do some REAL 4X4-ing, why do you want them?
a. They do not wear well at all if on pavement a lot
b. It will change the as-built center-of-gravity of the Jeep
c. It will drive differently
d. You may well end up with the Death Wobbel!
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Old 09-30-2011, 12:08 PM   #15
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If you look at the original post, it says he is getting 23-24 on the way to work.

He didn't mention it's all down hill, and on the way home he's getting 10.
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Old 09-30-2011, 12:15 PM   #16
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Quote:
Originally Posted by Pilgrim_Jeep
If you look at the original post, it says he is getting 23-24 on the way to work.

He didn't mention it's all down hill, and on the way home he's getting 10.
Not to mention its much colder in the a.m. and the engine runs better.
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Old 09-30-2011, 12:26 PM   #17
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Quote:
Originally Posted by andre1002 View Post
I'm running 33" GY Duratrac's. My MPG stayed the same as stock.. But .. I also switched out my stock "steel" wheels for "alum" MB72's. so my stock wheels and tires were actually heavier than my 33" duratrac's and MB72's?? however right after I put my lift on the MPG's went down by 2 MPG's.... 2011 sport 2door.. 3.21 gears... Thats my experance. Now to answer your question it all depends on what kind of 33's u get? Diffrent brands means diff weights and tread pattern's ect. BTW congrats on the 23-24 mpg..
Andre,

Did you notice a power difference going to the 33" Duratracs? Did you lift for cosmetic or fitment issues?

I am intersted in the same tire, so your input would be a great help.

Thanks

Wil
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Old 09-30-2011, 03:21 PM   #18
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I lost about 1-2 depending on how i drive .whent from stock m/t to km2 bfg doesnt bother me it looks freaking great with 33's and 2 inch lift
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Old 10-01-2011, 01:11 PM   #19
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Quote:
Originally Posted by Pilgrim_Jeep View Post
If you look at the original post, it says he is getting 23-24 on the way to work.

He didn't mention it's all down hill, and on the way home he's getting 10.

hahahahahahah!
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Old 10-01-2011, 04:52 PM   #20
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Quote:
Originally Posted by EchoThruMe View Post
I commute 100 miles per day all highway and currently have 29" tires. I'm only getting 19 mpg. What wheels and tires are you running now? 29" or 32"? Great mpg

And all this guy gets is 19mpg.... slacker!
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Old 10-01-2011, 10:35 PM   #21
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Quote:
Originally Posted by JYJeep

And all this guy gets is 19mpg.... slacker!
Its echo. Not this guy. Thanks chief
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Old 10-02-2011, 01:07 AM   #22
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Quote:
Originally Posted by Wil View Post
Andre,

Did you notice a power difference going to the 33" Duratracs? Did you lift for cosmetic or fitment issues?

I am intersted in the same tire, so your input would be a great help.

Thanks

Wil
I noticed a very slight power diffrence when getting onto the freeway but, around town there was no diffrence..(I should mention the wife says I drive like a grandfather) she's probly right .. Also I put the teraflex lift level kit on. personally I love this set-up. Its exactly what I wanted to be able to use the jeep as my daily driver and light wheeling on the weekends.
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Old 10-02-2011, 08:08 AM   #23
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Quote:
Originally Posted by Osage Orange View Post
The October issue of JP Magazine does a good dyno comparison between two similiar tire / rim combinations in regards to weight differences causing power loss & gas mileage loss. Certainly worth a read! A little weight difference between different 33" tire and rim combinations is a big deal!
I have to agree here....there are quite a few downsides to extra weight and some tires and wheels weigh much more than others. My '75 Jeep took a large power/mpg hit when I put on a winch and larger tires....due to weight and making the rig even more aerodynamically inefficient. I'm being more selective when adding stuff to my JK which is a DD.

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