Tire size question
#1
JK Enthusiast
Thread Starter
Tire size question
I have a stock JK Sahara with 4.10 gears and stock Duelers on 18" rims.
Does anyone know how going to Duratrac 275/65/18 or a 33" tire (275/70/18) would effect my gas mileage?
I'm sure it will drop, but trying to figure out how much to see if it would be worth it. I drive in the highway a good bit.
Does anyone know how going to Duratrac 275/65/18 or a 33" tire (275/70/18) would effect my gas mileage?
I'm sure it will drop, but trying to figure out how much to see if it would be worth it. I drive in the highway a good bit.
#2
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You'll be fine for power but yes the mileage will drop. I went from being able to push around 22 mpg fully stock to 19 mpg if I baby it on the highway. You are lucky to have the 4.10's. I ran 275/65/18 Duratracs for a while and now run 33x12.5x15's. No contest offroad between the duelers and the Duratracs.
Last edited by PG-JKU; 08-22-2013 at 09:02 AM.
#3
JK Enthusiast
Thread Starter
You'll be fine for power but yes the mileage will drop. I went from being able to push around 22 mpg fully stock to 19 mpg if I baby it on the highway. You are lucky to have the 4.10's. I ran 275/65/18 Duratracs for a while and now run 33x12.5x15's. No contest offroad between the duelers and the Duratracs.
#4
JK Junkie
I have a stock JK Sahara with 4.10 gears and stock Duelers on 18" rims.
Does anyone know how going to Duratrac 275/65/18 or a 33" tire (275/70/18) would effect my gas mileage?
I'm sure it will drop, but trying to figure out how much to see if it would be worth it. I drive in the highway a good bit.
Does anyone know how going to Duratrac 275/65/18 or a 33" tire (275/70/18) would effect my gas mileage?
I'm sure it will drop, but trying to figure out how much to see if it would be worth it. I drive in the highway a good bit.
I have them in 17" and I am pretty happy with them
On that one change alone I would expect less than 1 mpg loss
Matthew
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#5
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I would expect you to loose some power and maybe a MPG or two, but nothing too serious. I went from the stock 235's to a 33" tire and saw around 1 MPG loss in town and barely anything on the highway in my 2012 with the 3.6L
Hope this helps!
-Zach
#6
He has a 2007. I have the same year and did the same thing when I first bought my JK. I also had 4:10s. Your gonna loose a couple MPG. But its a jeep. You didn't buy it for gas mileage.
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#8
JK Enthusiast
Thread Starter
What motor and trans are you running? That will be a big determining factor in what kind of power loss you'll see. The new 3.6L Pentastar motor has an awesome amount of power for a Jeep. The older 3.8 is kind of sluggish in the power department, however the 4.10 gears will really help out.
I would expect you to loose some power and maybe a MPG or two, but nothing too serious. I went from the stock 235's to a 33" tire and saw around 1 MPG loss in town and barely anything on the highway in my 2012 with the 3.6L
Hope this helps!
-Zach