Forum Discussion
Cummins12V98
Sep 14, 2022Explorer III
SweetLou wrote:
What about the blue def in the tank? My tank is 1/2 full. I know that it could freeze but I think 1/2 a tank would be enough for expansion. I could open the cap just in case but should I be concerned?
My truck sets all Summer with whatever DEF that's in the tank when returning to the NW from my Winter Wonderland. Never an issue. You will be fine just disconnect the negative terminals, that's it!!!
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