Interesting article on def quality

[DennisT]

We have always used truck stop def as well.

 

[Joe Hogan]

Picked up a few boxes of Blue DEF from Walmart. Mfg date April 2023.
Will use them on our trips this Fall.
Don’t think I’ll be buying anymore of the boxed DEF.
Branded High volume truck stop DEF has worked for us, is more convenient and fresher.

Bag the Box….