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Reply To: New GMC owner new to the Duramax family

May 15, 2023 at 7:42 am #761063
2023 Duramax1500
Participant

@ firepoggy I have put 1 box of DEF in the truck so far which filled it up. Used only 1 bar of Def on my trip 1,176 round trip to and from MI. I’m loving the truck so far. Speedway is my perfected fuel station. But I found Top Tier fuel on FT Campbell.

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