Thanks, John. We have a GMC Sierra 3500. I don't know if the DEF tank sensor has any of the same issues you're referring to. At this point, we're down to less than the 500 mile mark already, so I think I must add DEF.
Assuming the tank really is empty, should the dealer have filled it before letting us take the truck home?
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2022 Cedar Creek Champagne 38EL - "Big Bertha"
2019 GMC Sierra 3500 Denali HD 6.6L Duramax TD, CC, 4WD, DRW - "Mr. Beefy"
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