DEF and water

[Bryce18]

Listen to this, I know a lot of hay truck drivers since im the hay sales manager of a large farm and ranch. Anyways, i was talking about the emissions equipment on all the new trucks with a driver that has a 2011 peterbuilt, and he said hes been filling the DEF tank with water for about a year now, and hasnt had any problems! I got to thinking, why wouldnt that work for the pick-ups as well?? DEF (urea) is basically mostly a water mixture anyways.

I just thought this was interesting and though id share. Even though my 6.7L doesnt run on DEF anymore anyways and haha
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[WildStyle]

it'll throw a hissy fit. The tank has a contaminants sensor.

[mysticblu999]

I forgot what DEF was, its been a while

[joesuprdty]

Delete it !! water is for fish not diesel trucks

[gsxr1300]

def is mostly water i believe

[powerstroke43]

Def cleans up the NOx and our trucks have a NOx sensor, so if the NOx isn't at a certain level it will give you a contaminated def fluid message.


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[Bryce18]

Originally Posted by joesuprdty

Delete it !! water is for fish not diesel trucks

Ya mines already deleted, but i was just curious if this was possible for others.

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[Bryce18]

Originally Posted by powerstroke43

Def cleans up the NOx and our trucks have a NOx sensor, so if the NOx isn't at a certain level it will give you a contaminated def fluid message.


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Ya thats what i figured.

It would have been pretty cool if water did work though.

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