I personally use the truck stop DEF, simply because I believe all DEF is the same, but also, it takes a bit of plastic out of the stream. I'm not a tree hugger, but if I can do a small part like this, maybe generations on down the road will have it a "few jugs better."
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2020 MHC 330RL
2021 F350 DRW 6.7 Powerstroke
Retired and Rollin'!
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