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Old 09-04-2013, 07:48 PM   #451
Lowe's Krawler (no malls)

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I ended up with close to 22 overall on this leg of my 600 mile trip. That was on real gas, no ethanol. Once I went back to 10% corn it went back to 20

Ethanol sucks


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Old 09-04-2013, 08:01 PM   #452
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I ended up with close to 22 overall on this leg of my 600 mile trip. That was on real gas, no ethanol. Once I went back to 10% corn it went back to 20

Ethanol sucks
That' sucks your mileage dropped back down. I use shell (87) with 10% ethanol. Guess mine loves the corn. Lol. The one trip I did make in it down to Destin, Fl I hit 25mpg and that was with some Chevron gas. But I've got 40 k miles on it and I'm pretty sure it's broke in by now. But I think anyone getting 20mpg to 24 mpg is pretty good.

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Old 09-04-2013, 10:42 PM   #453
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But I think anyone getting 20mpg to 24 mpg is pretty good.
exactly.. no complaints! Compared to my TJ, this thing is like a hybrid!
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Old 09-05-2013, 10:30 AM   #454
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I ended up with close to 22 overall on this leg of my 600 mile trip. That was on real gas, no ethanol. Once I went back to 10% corn it went back to 20

Ethanol sucks
I have not done a comparison of ethanol fuel versus non-ethanol in the Jeep yet. However, I can say that I drove a Prius for six years, including multiple cross-country trips, and that thing is a veritable laboratory/petrie-dish for mileage, i.e., whatever works or doesn't work in a Prius applies to other more "normal" gas vehicles, it's just magnified in the Prius, things like tire-pressure, racks (affecting aerodynamics), temperature, head-winds versus tail-winds, etc. I had read on the Prius forums that non-ethanol gas would give 10% better mileage, much like you report with your Jeep, but my experience did not bear it out. I found I got identical or nearly identical mileage with any 85.5 or 87 octane fuel, ethanol or not. Other conditions mattered far more. I eventually decided to just use whatever I could get for the least money and not worry about it. I am sure this goes against conventional wisdom, and I'll definitely test it out in the JKUR one of these days, but that was my experience based on about 50K miles of driving a hybrid which was very sensitive to changes in conditions.
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Old 09-05-2013, 05:43 PM   #455
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Yeah the owners manual for my Jeep says to stick with lower octane gas the higher octane is not needed With that said in all my vehicles I have ran lowest octane gas. Usually 87 but the problem around my area is you can't find hardly any places that don't have non-ethanol gas. So really not much choice in what to put in the Jeep, if its low grade so be it. And having proper tire pressure does make the single biggest difference to get you those few extra mpgs. Some one I work with has a Prius C and he he has had it just about 2 years and he averages around 48mpg on the highway and he lives an hour n half away from work so that's pretty impressive.
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Old 09-05-2013, 05:50 PM   #456
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I got 21.2 on my last road trip down to Oregon from Seattle...I was happy.
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Old 09-05-2013, 06:51 PM   #457
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2013 JKU with manual shift here. Mostly single lane rural roads and freeways with some town driving. I see a pretty consistent 21-22mpg.
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Old 09-05-2013, 07:09 PM   #458
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I have about 1500 miles on my 2013 JK. In stop-and-go traffic to work (30 miles R/T) I average about 19.5. 300 mile round trip last weekend to the WV mountains (no off-road, just about 20 miles of gravel) and 75mph on the freeway in VA I got 20.2 calculated at fill-up. Trip computer said 21.2 so it wasn't too far off.
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Old 09-05-2013, 07:28 PM   #459
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2012 3.6 auto now with 40,xxx JK 2door w/ 3/21's. 265 on 18's. Summer's I usually average 23.2 and winters around 20. I do a ton of highway travel in New England, NJ, NY, PA and occasionally OH. City traffic kills me. My average speed (combined) is 47.5. The highest I've seen was on I-90 going from Albany to Buffalo - cruise on 61 and I hit 24.3 for a long while.
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Old 09-05-2013, 08:48 PM   #460
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getting 20 around town. 23 on highway. 2014 JKU auto 3.21 255/75/17 goodyear. only have 1400 miles on the clock. interested to see if it stays this way. so far iam surprised by the mpg.
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Old 09-05-2013, 08:52 PM   #461
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2012, 16000 illinois interstates 21mpg city 18mpg no complaints!!
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Old 09-05-2013, 09:13 PM   #462
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2012, 16000 illinois interstates 21mpg city 18mpg no complaints!!
I also get great MPG here in Illinois. I just go down hill in neutral. LoL
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Old 09-05-2013, 09:21 PM   #463
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I was getting a hair under 25mpg highway @ 55 with my 13' 6 speed and stock tires at 55psi ( I think they were if I can remember ) With my 285's at 30psi I'm averaging 21-22 mixed driving and 23.5 on the highway @ 55. That's not using the computer.

Better mileage than I thought I would get, but I rarely go over 55. I actually enjoy driving slow, but a few times I bumped it to 60 in Michigan
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Old 09-05-2013, 11:06 PM   #464
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If I keep it @ 70 or less, I can get to 20 mpg. At 75 it drops to 18. This is on the flats with little wind.

2013 10a stock with 3.73.
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Old 09-05-2013, 11:20 PM   #465
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yep

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