DEF Tank/Fluid after deleting. - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 04-28-2014, 12:14 PM Thread Starter
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DEF Tank/Fluid after deleting.

Tried searching for this answer but could not find a much out. What are you guys out there doing with the left over DEF fluid in the tanks after doing a delete? The reason I ask is at some point, 1-3 yrs down the road when I want a new truck I would like to put this one back to it's stock form and for it to run properly again without too much fuss and money. When the DEF fluid drys out in a used container it forms some kind of crystal. I am thinking that will happen to the sensors, pump, line and bottom of my DEF tank if I pump it dry. On the other hand DEF fluid I was told has a shelf life of 4 months up to 1.5yrs depending on temp. Any input would be helpful.

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2015 F-350 CCLB Loaded, Lariat Ultimate, FX4 Off Road Pkg, Reese 5th/Goose Hitch, Fully Loaded.
2014 VW Passat TDI (DIRTY DIESEL )42mpg on the highway (Wife's Ride).
2011 F-350 CCSB 6.7L, Loaded, Lariat Ultimate, FX4 Off Road Pkg, Reese 5th/Goose Hitch, White on Black. (43K as of 4/14) H&S Mini Maxx, Flo Pro delete pipe, Magna Flow Muffler and Sinister EGR Delete . Sold 2/15
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post #2 of 4 Old 04-28-2014, 02:17 PM
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I wondered the very same thing for the first few months after the delete. That was about a year and a half ago and it still has probably 3/4 tank of DEF. I had thought about the trade in aspect too when it comes time for a new truck but from what I have read if the dealer finds out it was deleted they aren't supposed to accept it in on trade. So I guess it will be sold to another individual for me! I have been burned a few too many times at the dealer for trade-in anyway.

But I guess you could always drain it. I have read somewhere on here that people were draining the tank and using it for something else or just removing it altogether. Good luck with whatever you choose.

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post #3 of 4 Old 04-28-2014, 03:22 PM Thread Starter
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Quote:
Originally Posted by jrshelton13 View Post
I wondered the very same thing for the first few months after the delete. That was about a year and a half ago and it still has probably 3/4 tank of DEF. I had thought about the trade in aspect too when it comes time for a new truck but from what I have read if the dealer finds out it was deleted they aren't supposed to accept it in on trade. So I guess it will be sold to another individual for me! I have been burned a few too many times at the dealer for trade-in anyway.

But I guess you could always drain it. I have read somewhere on here that people were draining the tank and using it for something else or just removing it altogether. Good luck with whatever you choose.

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Maybe there are different laws in different states, but I don't see any reason why a dealer could or would refuse to trade a vehicle IF all emission's equipment was set back to OEM standards and functional.


2015 F-350 CCLB Loaded, Lariat Ultimate, FX4 Off Road Pkg, Reese 5th/Goose Hitch, Fully Loaded.
2014 VW Passat TDI (DIRTY DIESEL )42mpg on the highway (Wife's Ride).
2011 F-350 CCSB 6.7L, Loaded, Lariat Ultimate, FX4 Off Road Pkg, Reese 5th/Goose Hitch, White on Black. (43K as of 4/14) H&S Mini Maxx, Flo Pro delete pipe, Magna Flow Muffler and Sinister EGR Delete . Sold 2/15
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post #4 of 4 Old 04-28-2014, 04:12 PM
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I do not disagree with you at all, I just know if they can find anyway to save some money at the person trading in the vehicles expense they probably will! Everyone says something different about if the truck's computer shows history of being tampered with/tuned and I guess depending on the dealer that might be enough to refuse trade or they may not care as long as it is returned to stock. Either way do what you need to when the time comes and roll with it!

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