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Old 01-29-2012, 08:28 PM
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How low can you go?

On the gas tank, that is.

I've noticed when the fuel light comes on in my 06 it usually takes about 18.5 gallons to refill it. From time to time I end up pushing it a bit, mainly when my route heads directly opposite the nearest stations. I've, once or twice, gotten to 19.5.

Yeah, yeah, I know, don't run the tank that low, sediments, etc. And yes, replacing the filter means dropping the tank as it's built-into the fuel pump. I get it.

But today takes the prize, it took 20.5 gallons ($72!) to refill the tank. Must've been damn close to running out!
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Old 01-29-2012, 08:30 PM
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Re: How low can you go?

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Originally Posted by wkearney99 View Post
On the gas tank, that is.

I've noticed when the fuel light comes on in my 06 it usually takes about 18.5 gallons to refill it. From time to time I end up pushing it a bit, mainly when my route heads directly opposite the nearest stations. I've, once or twice, gotten to 19.5.

Yeah, yeah, I know, don't run the tank that low, sediments, etc. And yes, replacing the filter means dropping the tank as it's built-into the fuel pump. I get it.

But today takes the prize, it took 20.5 gallons ($72!) to refill the tank. Must've been damn close to running out!
thats pretty damn close! i have never put more than 19 in it
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Old 01-29-2012, 08:49 PM
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Re: How low can you go?

Lower than your momma eva seen it in her lifetime lol
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Old 01-29-2012, 11:08 PM
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Re: How low can you go?

hahaha ^^^^

i dont like to let it go below a quarter of a tank ... just because i know the lower it gets the more i have to pay to fill it back up
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Old 01-30-2012, 12:19 AM
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Re: How low can you go?

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Originally Posted by Reichminister Goebbels View Post
Lower than your momma eva seen it in her lifetime lol
I had that song in my head before I even clicked the thread!
19's been it for me as well. I hate walk'n
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Old 01-30-2012, 12:27 AM
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Re: How low can you go?

I got 20 gallons once in the SRT. Drove with the gas light on for 50 miles. And I didnt drive a granny just because I had little gas. LOL
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Old 01-30-2012, 11:11 AM
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Re: How low can you go?

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Originally Posted by 4.whoa View Post
I had that song in my head before I even clicked the thread!
I'm glad a couple people were cool with the reference lol

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Originally Posted by Robert Palmer View Post
And I didnt drive a granny just because I had little gas. LOL
That's going hard in the tank! lol

I've always followed the methodology of filling it up once it reached the half-way mark.
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Old 01-30-2012, 11:48 AM
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Re: How low can you go?

I was in the boonies in upper WI in wintertime, the light came on and there were no stations; then the miles to empty was at 0 for around 5 miles. I coasted in N down hills, and finally a gas station appeared. what a relief it was Since then I fill it when there are 50 miles to empty; plus it is not good on the fuel pump to run on a very low tank.
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Old 01-30-2012, 03:29 PM
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Re: How low can you go?

your going to have approx 2 gallons of reserve in the tank when the gauge reads 0 miles to empty.

I was filling up with about 17.5 gal pretty regularly, since my last 4wd outing I seem to have lost some space due to a skid plate that was misshapen on rocks... Im now typically filling up about 16.5-17 gal. I need to drop the tank and pound the skid plate out
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Old 01-30-2012, 10:40 PM
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Re: How low can you go?

Given that the tank is plastic and just rests in the cradle it seems hard to imagine being able to crush it enough to lose that much capacity. Not without the impact doing a lot more damage to the mounting flanges first. But I suppose anything's possible...

I can recall the first time I had the light come on. Lit up just as I got stuck on the PA turnpike out west of Breezewood. Bumper-to-bumper, in a near blizzard situation, sign reads 15mi to next exit. I had no idea that '0 miles to empty' didn't really. Took an hour crawling along to finally get there and it still only took 19 to fill it. I was both pissed and grateful at the same time.

The other night the problem was the GasBuddy app doesn't have operating hours. And the two "nearest" stations were closed (pumps off). Adds a bit of stress to go a bit out the way to get to the nearest ones only to find them closed. Started to wonder if it was going to end up being a 'call a taxi' trip home...
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Old 01-31-2012, 03:08 AM
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Re: How low can you go?

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Originally Posted by wkearney99 View Post
Given that the tank is plastic and just rests in the cradle it seems hard to imagine being able to crush it enough to lose that much capacity. Not without the impact doing a lot more damage to the mounting flanges first. But I suppose anything's possible...
The tank is plastic, you sir are correct, but ALL WK grand cherokees have a steel skid plate that holds the fuel tank up... A thin steel skid plate against 5000+ lbs of motivation and a rock that I just flat out didnt have enough clearance to properly get over and if you saw my skid plate smashed up from front to rear you would understand.
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Old 01-31-2012, 08:40 AM
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Re: How low can you go?

Bear in mind that there are two different tank cradles. The standard one is pretty thin, maybe enough enough to have a rock actually puncture it. Good thing the tank inside is plastic. The 'skid plate' variety has a heavier gauge bottom, less likely to get damaged. The skid plate version also has a mounting flange on the front of it for the transfer case skid plate. The regular tank cradle does not have this two-hole metal flange. If you've got the factory metal transfer case skid plate then you've got the skid plate tank cradle too. I know this from having replaced my tank cradle to accommodate the xfer case skid plate.

I could see where the rear flange of it could get crushed enough to compress the tank. But I'd imagine that would make it a real hassle to get those bolts out later. I'm guessing next time you'll try to go a little slower over crossings like that, eh?
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