Gonzo42ExplorerFeb 05, 2014What is it with DEF?Just what is the Diesel Exhaust Fluid (DEF) ? What does it do and why do I need it? This is my first diesel and I never heard of it.
jerem0621Explorer IIFeb 05, 2014videoI like the way this guy from powerstroke help breaks this down. Thanks!Jeremiah
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