I've only been driving 2-1/2 years and have tried to educate myself on how the DEF aftertreatment system actually works and why what I would think would be just a simple filter system would be so expensive.
I've read a lot, watched videos but this vid just popped up on my feed today and it filled in many of the blanks that I still had.
Kinda surprised that Lone Mountain published this but grateful that they did.
I hope this helps someone.
Aftertreatment systems (DEF)
Discussion in 'Questions From New Drivers' started by fishonron, Nov 12, 2020.