When did DEF become required ?
Thinking of upgrading to a DP. I want to avoid having to deal with DEF. What year models did it become a requirement ?
Forum Discussion
I've heard many independent truck drivers that come to our plant to load up say, the extra cost in DEF hurts their pocket book, but they are doing tens of thousands of mile per year. The DEF does reduce emissions but, I think motorhomes should have been excluded from the mandates, due to them not being the cause of our pollution problems.
