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Reply To: New GMC owner new to the Duramax family

#747986
firepoggy
Participant

Owners manual says no need to plug your truck in unless its below zero. Do it anyways below 20, your truck will thank you later.

Buy def at the pump. Its cheaper and too many horror stories of a**holes refilling the jugs with water and returning to store. If you miss the seal being broken you’re on the hook for repair.

ALWAYS treat your fuel for winter, don’t trust the fuel haulers that deliver to the gas station to do it. Your mileage will suffer but its better than walking because you gelled up.

Sold my 5th wheel and traded the dually in for a 1500 gasser, life is much easier.

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