[volkswagens-for-life]

Every single one of these threads I see, the result is someone using off brand crap def. Just saying. Peeps here will argue me. That's fine. My personal experience (hundreds of these exact thread). For what it's worth, first time I used non Ford def on my 6.7 I had everlasting emissions problems too.

"But def is def".

 

[volkswagens-for-life]

I may buy VW DEF as needed after this, at least for a while. Should I decide to try something else after a while, it will probably be Peak...that seems to be everywhere.

Peak same story. Many on here and the forums with botched def systems with peak.