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Discussion Starter #1
when they added an exhaust?

I just had a JBA "exhaust" put on my JK over the weekend. The exhaust is really just a muffler swap...anyway...

Normally I would get about high 18's (18.9) to high 19's (19.7) driving to and from work, with the occasional luck of a 20.x MPG mark thrown in.

Filled the JK up on Sunday in advance of driving to work this week. Filled it up again just now for the impending doom of a snow storm we're gonna have (;)). This time my MPG was at 21.1. I went 242.3 miles on 11.5 gallons of gas.
 

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when they added an exhaust?

I just had a JBA "exhaust" put on my JK over the weekend. The exhaust is really just a muffler swap...anyway...

Normally I would get about high 18's (18.9) to high 19's (19.7) driving to and from work, with the occasional luck of a 20.x MPG mark thrown in.

Filled the JK up on Sunday in advance of driving to work this week. Filled it up again just now for the impending doom of a snow storm we're gonna have (;)). This time my MPG was at 21.1. I went 242.3 miles on 11.5 gallons of gas.
damn!!! mostly highway? Mine is like 13
 

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I do a good mix of HWY and City, get 18-20, 37's, 5.13, manual, Banks CAI, stock exhaust with a smashed up tailpipe. There are random times though when I get 15 and I think that has more to do with the wind and how heavy my foot is for that tank.
 

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Hmm 18's, 19's, even 20's??? I thought they just put that stuff on the window stickers. Downhill with a tailwind (in overdrive if I can get it to stay there) I might get 16. First 10k miles I never saw above 14, but it would seem things have loosened up some and my tires aren't as big around as they used to be...
 

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I am suckin' wind with my new 35's and 3.21's (2dr 6-speed).

I am lucky to maintain 15 on the hwy.
I did the tires and exhaust at the same time so I'm not sure
if it helped or not.

But the gear change is in the works. :bounce:
 

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I was able to get 20 mpg on freeway on my 2008 Sahara with the stock rear end; I can't get more than 18 mpg on the freeway on my 2009 Rubicon...
 

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Discussion Starter #14
Yeah, I'm stock as far as a lift goes. I swapped out the stock SR-A's to a set of Rubi wheels and tires.

I dunno that I'd call it highway driving. It's like 55-60mph driving, coasting down hills and then powering up them, with stop lights every few miles, then definitely city conditions when I get to where I work. I usually just put it in 5th or 6th and putt around base at 30-40mph, that really helps the mileage.

6spd FTW?
 

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um... yeah, I was going downhill... but still exciting :thefinger:
 

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i havent had a vehicle that got good gas milage in so long that i dont even bother watching it anymore. i just fill the tank when the needle gets close to E, sometimes i wait til the little idiot light tells me to fill it too. once on my old truck i just let it run out of gas cause i felt like pushing it a few miles, it got real good milage then :laughing:
 

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when they added an exhaust?

I just had a JBA "exhaust" put on my JK over the weekend. The exhaust is really just a muffler swap...anyway...

Normally I would get about high 18's (18.9) to high 19's (19.7) driving to and from work, with the occasional luck of a 20.x MPG mark thrown in.

Filled the JK up on Sunday in advance of driving to work this week. Filled it up again just now for the impending doom of a snow storm we're gonna have (;)). This time my MPG was at 21.1. I went 242.3 miles on 11.5 gallons of gas.
Just wondering, did you change your tires? The odometer is off when you switch to larger tires (to the best of my understanding) I thought I was getting better mileage to after I took my muffler off all together, but it's still the same.
 

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what is this 20 mpg thing you speak of? i have a bone stoke 07 and only get 14 if i drive like my grandma, and if i drive bad i get about 12, ive never seen 20 not even on the highway, and i dont even want to talk about driving with the top off
 

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i average 160 mpg highway ayt about 83 mph
 

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what is this 20 mpg thing you speak of? i have a bone stoke 07 and only get 14 if i drive like my grandma, and if i drive bad i get about 12, ive never seen 20 not even on the highway, and i dont even want to talk about driving with the top off
mmm...I got 20-21 mpg on the hwy with my '08 Sahara 6-speed, with the stock 3.21 gearing and Bridgestone tires...as long as I kept it under 75 mph
 
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