2016 DEF capacity
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Lead Driver
Joined: Jan 2002
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From: Itinerant
2016 DEF capacity
It has been along time (4 years) since I've seen a 500 miles to empty display on the truck for def. I normally just add a 2.5 gallon jug before leaving on a long move with the 5th wheel. I don't remember the last time I put any in. A couple weeks ago it showed the display just before a move and I wasn't worried about it seeing it was only a couple hundred mile move towards civilization. I thought that the level would be low and bought 2 2.5 gallon jugs after arriving. I figured it would take 1 and some of the other jug. It didn't even take 1, maybe quart or so left in it. I would of thought with 5 gallon capacity that a 500 mile to empty display it would of taken more the 2+ gallons of def. 
Anyone else seen or notice this?
Anyone else seen or notice this?
FTE Legend
Joined: Mar 2017
Posts: 31,830
Likes: 9,154
From: Western NY
I never had a problem with my 16. When I would get the 500 miles to empty message, I would put in a 2.5 gal jug, then start on the other one and maybe get half in or so I want to say...
But I normally don't wait until it gets down that much... I remember a Ford Tech here saying to add a jug full every 3k to 4k miles....
Some guys have problems by doing that but I never have... From what I've gathered from being here is that the 3 DEF level sensor system in our 11 to 16s CAN BE finicky when it comes to this but not always.
But I normally don't wait until it gets down that much... I remember a Ford Tech here saying to add a jug full every 3k to 4k miles....
Some guys have problems by doing that but I never have... From what I've gathered from being here is that the 3 DEF level sensor system in our 11 to 16s CAN BE finicky when it comes to this but not always.
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Lead Driver
Joined: Jan 2002
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From: Itinerant
It's just been so long that I've seen a 500 mile to empty display and thought it would take some of the 2nd jug but suppose not. Now there's 2.5 gallons on standby when needed next, I'll just store it in the basement of the 5th wheel, now if I just don't forget it's there. 
Thanks,
Thanks,
Cargo Master
Joined: Feb 2015
Posts: 2,338
Likes: 255
From: Livermore Ca.
This sucks because there is still enough fluid to do at least one more regen till empty. It would be nice to have a 7 gallon tank so you just add 2 boxes in winter and it wouldn't be overfilled. I hate having some left in the box which happens all the time.
FTE Legend
Joined: Mar 2017
Posts: 31,830
Likes: 9,154
From: Western NY
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Lead Driver
Joined: Jan 2002
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From: Itinerant
There is about an inch of DEF left in the 2.5 gallon jug and I can't bring myself to throw it out but hate having that almost empty jug in the truck. 
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