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I went on a road trip over the weekend and ran it down to where i showed 27 mile range left. We can estimate that is worth about 2 gallons, roughly and on the safe side. When i filled up, it took 28.5 gal. So that seems reasonable to me since running it down dry would get me roughly 30-30.5 gal with a little reserve. Maybe i got lucky with mine reading correctly? Surely that can't be the case.

i haven't paid enough attention to this, but what kind of range are you guys seeing when you fill up your tank? I'll see what mine shows the next time i fill up, but i wonder if the range if off with tanks still registering as a 26 gal tank?
 

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Range is about 470-520 miles. The DTE is pretty accurate, it's the fuel gauge that is way off. With a DTE of 20 miles mine takes about 28 gallons, pretty much every time. I still have 4 gallons remaining, but it is unnerving driving around with the needle past E.
 

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i haven't paid enough attention to this, but what kind of range are you guys seeing when you fill up your tank? I'll see what mine shows the next time i fill up, but i wonder if the range if off with tanks still registering as a 26 gal tank?
I'm only seeing 660'ish in km, which is roughly 410 miles. Driving on empty for literally DAYS is what I would consider inaccurate, while still only being able to get no more than 110 liters into the tank (approximately 29 gallons). I really don't care having the extra 3 gallons in the tank at all times, but in this level of vehicle for the money we paid, it should be far more accurate.

What gets me fired up is the lack of communication and information to dealers in these matters. My dealers shop foreman had never heard of it, and went on to say it was impossible... I have little faith in the dealer/FCA service combo and will continue to depend on fellow owners such as our community to stay current with news and fixes.
 

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I am taking my truck in this week for this issue. It is either a software update or the dealer will put in a new fuel sending relay to til the gas guage it is a 32 gallon tank.
 

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FYI, this issue appears to have been resolved for MY 2017. I took delivery of a special ordered rebel in May with a 32 gallon tank, the fuel gauge is spot on.
 

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I am taking my truck in this week for this issue. It is either a software update or the dealer will put in a new fuel sending relay to til the gas guage it is a 32 gallon tank.
Please let us know what the fix was and if you could snap a pic of the shops work order for the members with this issue to show their dealers... since dealers are so consistent. ;)
 

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So, I took the truck in for this issue. They replaced the fuel pump/sending assembly. They stated that there may have been something wrong with the original one. I asked, is there a different part for the 32 gallon tank vs. the 26 gallon tank, and they said 'no'.

So, I picked up the truck and the gas light was on and I had a range of 16 miles. I went and filled it up and it only took 27 gallons?

Questions: is 5 gallons the correct reserve?
Why is the range so far off? if the computer says it's averaging 16 MPG, should it be calculating the range by number of gallons in the tank times MPG?

Thanks,
Dan
 

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I read on another forum a guy has the same issue. His dealer called corporate to speak with an engineer. He was told a software fix is going to be released in the 3rd quarter.
 

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The most I have put in my tank was 29 gallons and that was WELL after the dash said low range and no miles showing on the remaining. But I probably drove nearly 80miles with the light on.
 

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Maybe I can help clear the mystery. I had a 2011 Ram Outdoorsman with the 32gal. (as you already know 26 is standard). I had the same issue and was confused. Light comes on, I drive a few extra miles and still tops out at 25.5 gallons. So I did the unthinkable...I ran it dry. I had a gallon for my lawn mower in the bed; got it started and off to the gas station. 32.2 gallons. It was cold out and I figured the fuel condensed slightly.

Many of the concerns of doing this is real. 1. If your area has suspect gas, avoid doing this. 2. If you travel and frequent unfamiliar stations, avoid doing this. 3. If you live in dusty/desert environments don't do this. Impurities, sediments, etc. will settle to the bottom of your tank and guess what gets sent to truck's heart when you get past the last couple gallons? YES, it starts eating the 'yuck yuck'. I was very diligent on my truck and its services. It NEVER failed me. I ran it dry twice. Once for this experiment and once because of bad luck. Older vehicles in general may have pump issues, seal issues, or priming issues. If there is a history of this in your vehicle line then use more caution. 4th gen RAMs don't seem to have these issues but I can't guarantee anything.

So as soon as my light goes on now, I hit the reset on the trip odometer and I know I had another 100 miles to go. I will fill up about 29-30 gallons. That is based on MY vehicle and MY driving habits. I hit a 100K miles on that baby and traded in for a Rebel with a 32 gal tank so I will play a bit and provide some numbers later when I have them.

Today, my light went on for the first time on my Rebel. I immediately pulled and filled. 25.5 gallons. Dash stated I had another 50 miles. Indicators are usually conservative and probably calculated at 12.5 mpg which makes it 4 gallons. Leaving another 2.5 gallon 'reserve'. I get about 15 mpg city. So I estimate from the point my light goes on I actually have 90-100 miles before I whip my phone for AAA. Oh wait, I don't have AAA. Better not test this theory just yet. But based on my experience, the code (NFX), and indicators, my newly acquired Rebel indeed has the 32 gallon.


The 32 gallon is my single most favorite option. It should be standard across the fleet.


-Nuke
 

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why the **** can't I register on this site!?
A spammer database cannot be reached to confirm I'm not a spammer so i cannot register.
I put in my cell phone and it sent me a verification code which I put in and still got the ****
message that it can't confirm i'm not a spammer....
 

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FINALLY!
Disregard my last message... after I tried to post my last message I was finally able to complete registration and activation.


So i'm glad i'm not the only person who is having this 32gal issue.
I ran my truck down to no miles showing and the fuel arrow pegged and was only able to put in 27 gallons.
I figured they only put the 26 gallon tank in and the additional gallon was the line from the tank to the filler neck.

Maybe I'll try running the truck until it starves then see how much I can get into the tank
 
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