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Old 09-06-2013, 06:02 PM   #1
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Gas....

Hey, has anybody ever let your gas gauge run down completely? Where is the needle when your out? I'm just touching the red. Going for gas in the morning. I know last time I filled up I got like 15 gallons and it was in the red. I know I have a 19 gal tank.

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Old 09-06-2013, 06:11 PM   #2
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Hey, has anybody ever let your gas gauge run down completely? Where is the needle when your out? I'm just touching the red. Going for gas in the morning. I know last time I filled up I got like 15 gallons and it was in the red. I know I have a 19 gal tank.
Ok so you were at empty (in the red zone) and filled it up with 15 gallons and couldn't put more in? If thats the case then you don't have 19 gallon tank. What year, engine size ect??? Not all TJ's have 19 gal capacity.

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Old 09-06-2013, 06:20 PM   #3
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I've had my needle below the red area before.
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Old 09-06-2013, 06:21 PM   #4
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Ok so you were at empty (in the red zone) and filled it up with 15 gallons and couldn't put more in? If thats the case then you don't have 19 gallon tank. What year, engine size ect??? Not all TJ's have 19 gal capacity.
2001 sport. I thought It had a 19 gal? Lol. I6 as well. Was it an option. I thought maybe I saw it when I checked the vin last.
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Old 09-06-2013, 06:23 PM   #5
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Ok so you were at empty (in the red zone) and filled it up with 15 gallons and couldn't put more in? If thats the case then you don't have 19 gallon tank. What year, engine size ect??? Not all TJ's have 19 gal capacity.
probably still the 19 gallon tank, jeeps have a 5 gallon reserve. I think they did this to keep the pump cool as it is submerged at the bottom of the tank.
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Old 09-06-2013, 06:25 PM   #6
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2001 sport. I thought It had a 19 gal? Lol. I6 as well. Was it an option. I thought maybe I saw it when I checked the vin last.
You might want to run your VIN as that should tell ya what capacity you have as one option. The only other thing I can think of is when your at the red line, apparently its not actually empty but which might explain why you could only get 15 gallons in it... Anyone else want to throw some input here?

EDIT: just read Tdog02's post... Thats what I was thinking :/
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Old 09-06-2013, 06:34 PM   #7
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You might want to run your VIN as that should tell ya what capacity you have as one option. The only other thing I can think of is when your at the red line, apparently its not actually empty but which might explain why you could only get 15 gallons in it... Anyone else want to throw some input here?

EDIT: just read Tdog02's post... Thats what I was thinking :/
I'm pretty sure it said 19 gal when I ran the vin last. I'll check it again. It has never reached the E line, just the red zone. I just want to see how the gauges run, because I'm still learning to read it.
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Old 09-06-2013, 07:14 PM   #8
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i was always told that the jeep tj wranglers had a 19 gal fuel tank. When the light comes on you have a reserved 4gals left?
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Old 09-06-2013, 07:19 PM   #9
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I just verified my options. I DO have a 19 Gal tank.
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Old 09-06-2013, 07:22 PM   #10
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I've run it past "E" and still only put 16 or 17 gallons in it.
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Old 09-06-2013, 07:38 PM   #11
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I try not to let mine get below 1/4 tank.
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Old 09-06-2013, 07:40 PM   #12
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Last time I ran it down to E, I let the gas light come on. I happened to be about 300 yards from a gas station so I filled it up. I put in 16 gallons (almost exactly) so I figure that when my light comes on, I have 3 gallons left to play with. Knowing I get the usual poop mileage, I can do the math from there. I reset my trip odometer and count backwards if I'm not close enough to a gas station to fill up immediately.

I'm not sure where my needle was, but I know I can run it below the E and still have about a half gallon left.
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Old 09-06-2013, 07:44 PM   #13
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My 4 popper has the 14 gal. tank and, when the fuel light comes on, I still have approx. 4 gals. left in the tank. Most would advise not letting the tank go too low as your fuel pump is cooled/lubricated by the fuel in the tank.
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Old 09-06-2013, 08:04 PM   #14
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I generally don't even think about filling up until it is close to the bottom of the red zone, even then the tank still has a couple gallons left.
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Old 09-06-2013, 08:33 PM   #15
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I generally put a little more than 15 gal in when make the all to often trip to the pump. :-) the last few times I've filled up my gas light came on for 10 or 15 minutes then went off for half an hour before coming on. Weird.
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Old 09-06-2013, 08:43 PM   #16
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If remember correctly the owners manual says there is a reserve of ? Gallons when the light comes on. I've done a 40mile drive when the light had come on and still only put in 16 and some change gallons. That needle does drop awfully quick when it gets past 1/4 it seems.
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Old 09-06-2013, 09:10 PM   #17
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Generally as of late, I've been fuel up when I'm down a 1/4 tank (or at 3/4 of a tank full) since gas prices up here tend to me more volatile. Would anyone know if its a good idea to burn off all your gas instead of topping up all the time? Keep in mind I don't do much traveling/millage per week and its more of a part time errand runner that gets used a few times a week at most.
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Old 09-06-2013, 09:35 PM   #18
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Who cares how low you can run the tank down. Been driving vehicles for over 40 years and when your near empty you get gas. There were times back in the 70's I was so strapped for cash I would only put in a few dollars worth. So please stop trying to run the tank dry and just enjoy the jeep for what I is. These threads are getting very boring and makes this forum become a waste of time trying to help someone with a real tech question.
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Old 09-06-2013, 11:00 PM   #19
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I've tested this a bunch times over the summer since getting a tire carrier that holds a gas can. I6 2003 19 gal tank.

I get a solid 15mpg tank after tank on summer blend gas.

My light comes on at 180 -185 miles driven, damn near like clockwork. The light comes on pretty much exactly when the need touches the red on the gauge. If I fill up immediately I can only fit 15.5 gallons max if literally fill it till it wont hold anymore.

Ive ran it out of gas on purpose multiple times and I can squeeze out 280-288 miles on a tank! Damn near a hundred miles from when the light comes on! when its completely out, the needle is passed the other edge of the red by 1/8".

Like Jerry I don't even worry till I get to the edge of the red.
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Old 09-07-2013, 03:48 AM   #20
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I run the tank down past the red zone and still have a few gallons left (~45 miles). I rely on the trip meter more than the fuel gauge.





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So please stop ...
Please stop cluttering up the thread with your rant.
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Old 09-07-2013, 05:48 AM   #21
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Who cares how low you can run the tank down. Been driving vehicles for over 40 years and when your near empty you get gas. There were times back in the 70's I was so strapped for cash I would only put in a few dollars worth. So please stop trying to run the tank dry and just enjoy the jeep for what I is. These threads are getting very boring and makes this forum become a waste of time trying to help someone with a real tech question.
I forgot to ask for your permission first. Sorry about that.
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Old 09-07-2013, 06:02 AM   #22
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Who cares how low you can run the tank down. Been driving vehicles for over 40 years and when your near empty you get gas. There were times back in the 70's I was so strapped for cash I would only put in a few dollars worth. So please stop trying to run the tank dry and just enjoy the jeep for what I is. These threads are getting very boring and makes this forum become a waste of time trying to help someone with a real tech question.
you took the time to read this thread, comment and you had a story to share about it yet you give people a hard time? I have a little trick to help you out, don't open a thread that doesn't appeal to your liking and let others enjoy whatever it is that they want to discuss, that's why it's called a forum.
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Old 09-07-2013, 06:25 AM   #23
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I run the tank down past the red zone and still have a few gallons left (~45 miles). I rely on the trip meter more than the fuel gauge.
/\ /\ /\ This.
As soon as the low gas light comes on, I reset the trip-meter and (in my case) know I have just over 40 miles left before I run out.
I have deliberately ran the tank dry twice - both times I got just over 40 miles but I suspect individual results will vary.
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Old 09-07-2013, 08:16 AM   #24
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If you really want to know how low the needle will go, put a gallon can of gas in the back and drive it until it runs out....then you know.

I reset the trip odometer on every fill up. I do this on all my vehicles (especially on my ZX9R with no gas gauge). Knowing how many miles you can really sqeeze out of a tank before running dry is not a bad thing.
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Old 09-07-2013, 08:39 AM   #25
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Since it was brought up in the thread, I was wondering how to go about "running the VIN #." Is there a website? Thanks for the info about fuel capacity. While I don't usually let mine get too much below 1/4 tank, I have wondered about how much fuel is left when the needle hits the redline.
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Old 09-07-2013, 11:33 AM   #26
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Since it was brought up in the thread, I was wondering how to go about "running the VIN #." Is there a website? Thanks for the info about fuel capacity. While I don't usually let mine get too much below 1/4 tank, I have wondered about how much fuel is left when the needle hits the redline.
Here's a free VIN decoder (I just used mine and it was accurate):

Free VIN number decoder for any cars
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Old 09-07-2013, 11:36 AM   #27
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Thanks. I'll give it a try s well. Appreciated.
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Old 09-07-2013, 11:39 AM   #28
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thanks. I'll give it a try s well. Appreciated.
Np! It provided basic info, if you searched the web abit you might find better ones out there that are also free...
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Old 09-07-2013, 11:44 AM   #29
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Not very smart to do that. Gas keeps the fuel pump cooler and without the gas keeping it cool it over heats and takes a crap on you. Fuel pumps are meant for fuel as well so once you start running low it's bad for the pump to suck up air it starts to go out. Try and stay about a quarter tank at least. I never let mine go below half a tank.
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Old 09-07-2013, 02:38 PM   #30
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probably still the 19 gallon tank, jeeps have a 5 gallon reserve. I think they did this to keep the pump cool as it is submerged at the bottom of the tank.
^^^^^this

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