DEF
When did diesel pickups start using DEF?
Forum Discussion
librty02 wrote:
Someone let me know if I'm wrong but I believe it was 2011 for Ford with the 6.7 the previous 6.4 only used a DPF filter
2013 for the RAM and I'm not sure about the GM but after 2012 it was required
GM implemented DEF in their 2011 trucks but had major problems and actually disabled the DEF system with EPA approval until the issue could be resolved.
