Forum Discussion
Jarlaxle
Jan 11, 2015Explorer II
JCGibson wrote:
DEF is an added expense, however it is only required on newer Diesels. My 2011 6.7L Cummins (pickup) doesn't need it, but the 2012 model and newer do. Is it required on older DPs?
2010 engines should use it, as I recall...though a 2010 or even a 2011 DP could certainly have a pre-DEF engine.
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