Diesel Owners and DEF
OK so I am doing the dreaded new truck shopping and am just learning about DEF (Diesel Exhaust Fluid). My previous diesel did not have this. Tell me what you know about this stuff. In the meantime if I get a chance Ill see what google can teach me. Really I want to know, those that have a truck that uses it, are you happy or is it more of a pain in the butt????