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I recently purchased this used F250, and noticed this icon below the DEF gauge. I have made a bunch of adjustments to FORSCAN so I wasn't sure if I turned something on accidentally. I have added more DEF to see if that changed anything, and it hasn't.
Is this contaminated DEF?
That icon is just the DEF system icon, just like the gas pump, thermometer and oil can below those gauges are their icons representing what they are for.
If you have a DEF issue there will be a message pop up.
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Is this contaminated DEF?
