Quote:
Originally Posted by jfoj
I am not sure why the DEF temperature is important, I do know that the DEF will slush or freeze and maybe the temp sensor main purpose is to prohibit the DEF from being used when it gets close to slush temperature?
Maybe the temp is also used to precisely adjust the DEF amount as well, I have no idea.
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My guess too. Perhaps someone with more knowledge on DEF systems may chime in, but I dont believe that a few degree inaccuracy of the fluid will have catastrophic consequences.