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Old 05-10-2017, 07:37 PM
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What's the most you got out of a tank

Ran into a small issue of forgetting my wallet at home and gas light coming on, on my way home from work today. Only thing I could do was pray that I made it back. I was honestly really impressed that I was able to get 360miles out of one tank. I do about 85% highway driving. 2014 JKU auto 3.21 with KO2 mud terrains
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Old 05-10-2017, 07:48 PM   #2
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I don't remember how many miles on the tank, but when the readout switched from "xx miles to empty" to "low fuel", I got worried.

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Old 05-10-2017, 07:51 PM   #3
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On our 17 JKWW my fuel light comes on with 3 gals left. Enough to 50 miles without worry before filling up. My reading for Avg mileage reads 19 for just an FYI
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Old 05-10-2017, 07:51 PM
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I don't remember how many miles on the tank, but when the readout switched from "xx miles to empty" to "low fuel", I got worried.

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Haha yup I drove on "low fuel" for about 10miles today. It was a long and nerve wrecking drive home


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Old 05-10-2017, 07:58 PM   #5
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I average 350 to 360 regularly now but when I first bought it I couldn't get it past 320. The Jeep has just under 10k miles now.

Getting to 350 was my magic number because it means I only have to gas up once a week, but to be honest, even when I was only getting 320 I wasn't all that upset. I love commuting in my Jeep.
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Old 05-10-2017, 07:59 PM
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I average 350 to 360 regularly now but when I first bought it I couldn't get it past 320. The Jeep has just under 10k miles now.



Getting to 350 was my magic number because it means I only have to gas up once a week, but to be honest, even when I was only getting 320 I wasn't all that upset. I love commuting in my Jeep.


Dang I wish I get that much on a regular basis. Then again my Jeep is going on 60k. And mileage dropped once I put the leveling kit and mud terrain tires on.


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Old 05-10-2017, 08:58 PM   #7
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Dang I wish I get that much on a regular basis. Then again my Jeep is going on 60k. And mileage dropped once I put the leveling kit and mud terrain tires on.


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Mine is stock and will probably stay that way for the foreseeable future. I drive around 70-80 and try to be easy on the pedal once I am up to speed. It's just something that is cool but I was prepared for worse when I decided to buy the Jeep and went ahead with the purchase anyway. It is by far my favorite vehicle that I have ever owned, and I have been fortunate to have some pretty nice vehicles.
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Old 05-11-2017, 12:37 AM   #8
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Old 05-11-2017, 06:27 AM   #9
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My light comes on at about 260. 2.5" lift, 315 Cooper STT PROS. JKURHR
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Old 05-11-2017, 07:50 AM   #10
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Seeing how we've had the jeep 1 week.. we topped off the tank Sunday ($40.00) and it's now Thrus.. At this point with gas being 2.46 a Gal.. the fuel gauge is sitting at half a tank.. That's driving to and from work (apprx 27 miles)
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Old 05-11-2017, 08:46 AM   #11
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I'm getting 220 - 240 miles out of my tank. With mostly HWY driving. Have an 09 rubi on 35s. 3.8L V6
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Old 05-11-2017, 02:07 PM   #12
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Light (which comes on way to early IMO) usually comes on ~275 and fill up around ~325. Crazy how quick the numbers go down I remember when I first got it getting ~19mpg and 375 out of a tank and not sweating it.
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Old 05-11-2017, 02:46 PM   #13
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Light (which comes on way to early IMO) usually comes on ~275 and fill up around ~325. Crazy how quick the numbers go down I remember when I first got it getting ~19mpg and 375 out of a tank and not sweating it.
This is commonly known as the hidden 5 gallons. When the light comes on there is 4-5 gallons left on a 4 door, 3-4 on a 2 door.

The thought behind this is due to a carry over fix on the TJ's where there was a problem with the fuel sensor accuracy, where TJ owners were running out of gas before the light came on.
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Old 05-11-2017, 03:03 PM   #14
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The thought behind this is due to a carry over fix on the TJ's where there was a problem with the fuel sensor accuracy, where TJ owners were running out of gas before the light came on.
I'm not sure why this is so funny to me
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Old 05-11-2017, 03:12 PM   #15
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Quote:
Originally Posted by Lou E View Post
I average 350 to 360 regularly now but when I first bought it I couldn't get it past 320. The Jeep has just under 10k miles now.

Getting to 350 was my magic number because it means I only have to gas up once a week, but to be honest, even when I was only getting 320 I wasn't all that upset. I love commuting in my Jeep.
If only I could save that much money by filling up once a week...

I drive a lot and fill up almost three to four times a week...

However, I do love my JK 6 sp...so I guess it's worth it...
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Old 05-11-2017, 08:28 PM   #16
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I get 350-360 on a tank (JKU) routinely. 3.5" lift and 35" K02s.
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Old 05-11-2017, 08:32 PM   #17
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If only I could save that much money by filling up once a week...

I drive a lot and fill up almost three to four times a week...

However, I do love my JK 6 sp...so I guess it's worth it...
time for an upgrade

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Old 05-11-2017, 08:35 PM   #18
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This is commonly known as the hidden 5 gallons. When the light comes on there is 4-5 gallons left on a 4 door, 3-4 on a 2 door.

The thought behind this is due to a carry over fix on the TJ's where there was a problem with the fuel sensor accuracy, where TJ owners were running out of gas before the light came on.
~5 gallons seems like a lot, thats nearly 1/4 tank. I wonder how much of that is usable
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Old 05-11-2017, 08:57 PM   #19
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Here is today. I can take one tomorrow too, I drive 100 miles most days (too much)
I get about 19 mpg with my Hardrock AT/4.10's.



My other 4dr is a Sahara AT w/3.21s it gets 21.5 mpg.
My Camry SE gets 35-38 mpg.
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Old 05-12-2017, 07:18 AM   #20
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~5 gallons seems like a lot, thats nearly 1/4 tank. I wonder how much of that is usable
Absolutely. FCA won't come out and say it, but the thought was that on the TJ the light was supposed to come on when there was 2-3 gallons left. Due to faulty fuel level sensors on the TJ, it was not coming on for some until it was empty. So they moved the light level to come on when it was saying there was 4-5 gallons for the TJ to compensate for the faulty sensor, which means in a lot of instances it was now coming on at 2-3 gallons on the TJ for the inaccurate fuel level sensor. Now you have the JK, where the fuel sensor is working properly but the adjustment has not been changed, so it is coming on with 4-5 gallons left in the tank instead of typical 2-3 gallons.

On my 4 door, it has a 22.5 gallon tank. When I fuel up just after the light comes on, it takes 17-18 gallons to reach full. So do the math. 22.5 - 18= 4.5 gallons left.

I pushed it but have never ran out of gas. I was able to reach 21.5 gallons filling up once. So the tank indeed holds 22.5 gallons.
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Old 05-12-2017, 07:29 AM   #21
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Wow

Always wondered about that
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Old 05-12-2017, 08:10 AM   #22
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most i've gotten was 399 miles round trip from NJ to DC... i really considered driving around the gas station parking lot just to make it to the 400 mark.
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Old 05-12-2017, 08:31 AM   #23
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When my Jeep was still stock I was getting close to 400 miles averaging around 22 mpg. JKU, 3.21, 6spd. My commute was 37 miles each way all highway with some traffic thrown in. Now with the 285/70 Nittos and the 2" lift I'm averaging 19mpg and about 330 miles, but I never wait until the light comes on. If I'm around a 1/4 tank and see a cheap station I stop. Commute now is 27 miles mostly highway, but a bit more traffic.

Let it be known I also drive like a grandma...
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Old 05-12-2017, 11:11 AM   #24
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I'm at 240 miles on this tank, normally have to fill up at 225, but a trip to the lake last weekend for a bachelor party helped. It was about an hour and a half each way, for the first time ever, I saw 20mpg average.
I'd be happy if I hit 275. My drive is usually stop and go city traffic, so not any competition for a Prius, unless there's 18" of snow on the road.
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Old 05-12-2017, 05:18 PM   #25
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I got 401 miles once. I put 22.2 gal of gas in aferwords. I now have 2.5" lift -295/60/20s and I don't fill back up until I at least have 350 miles on it.
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Old 05-23-2017, 01:48 PM   #26
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Ok, question for you....

The other day, I was driving, and I actually drove to the lowest point on the Fuel Gauge that I've ever been in any vehicle I drive. I was practically on E once I got into the gas station. Cluster was giving me the "Lo Fuel" indicator and all.

I proceed to fill up, and I barely got over 15 gallons into the tank (even topped off a little).

I'm fully aware that they add a small reserve for stranded situations, and I even was just perusing my build sheet, which tells me I have an 18.6 gallon tank.

Is it possible the reserve is about 3 gallons?

I'm not complaining, I guess I'm more astonished that I have that much reserve space. I don't normally drive until I'm on E, maybe 1/4 left is when I start getting anxious...
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Old 05-24-2017, 06:53 AM   #27
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I almost always fill up when I hit a 1/4 tank, though I have been known to do so around 1/2. I've never encountered the need to push my luck with low fuel, too many gas stations are passed and the credit card is always handy.

Stock JKRHR with 3.73 auto. I usually get ~225 or so before I fill up. My son went joy riding a couple of weeks ago and got 290.8, the fuel light came on and he panicked (I was not happy).

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Old 05-24-2017, 07:30 AM   #28
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Ok, question for you....

The other day, I was driving, and I actually drove to the lowest point on the Fuel Gauge that I've ever been in any vehicle I drive. I was practically on E once I got into the gas station. Cluster was giving me the "Lo Fuel" indicator and all.

I proceed to fill up, and I barely got over 15 gallons into the tank (even topped off a little).

I'm fully aware that they add a small reserve for stranded situations, and I even was just perusing my build sheet, which tells me I have an 18.6 gallon tank.

Is it possible the reserve is about 3 gallons?

I'm not complaining, I guess I'm more astonished that I have that much reserve space. I don't normally drive until I'm on E, maybe 1/4 left is when I start getting anxious...
Read post #13.
There is still gas left when the low fuel light comes on. How much depends on whether you are in a 2 door or a 4 door. 3 - 4 gallons seems like what the 2 door has.
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Old 05-24-2017, 07:57 AM   #29
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Almost 400 on a 2 door and still had a few gallons left. However it was coming back from CO, backroads 50-60mph and losing elevation the whole time.
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Old 05-24-2017, 08:10 AM   #30
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I get 330-340 miles out of a tank at 70-72mph, using 19.2-19.5 gallons, 2" lift, 400lbs extra weigth, 4.56's, 35's.

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