Thread: Ok to top off DEF tank?
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Old 08-12-2019, 10:22 AM   #11
Skw774
Montana Fan
 
Join Date: Dec 2017
Location: Sharpsburg
Posts: 202
M.O.C. #20974
It is o.k to add anytime you want/need too. Or if you can delete that mess,no more def.
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2023 GMC 2500 HD AT4
2018 High Country 340BH
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