Diesel Exhaust Fluid Frequently Asked Questions — How is DEF delivered to my bulk tank?
Answers to Diesel Exhaust Fluid (DEF) common questions. DEF is a urea-based, non-toxic operating fluid used by diesel-powered vehicles equipped with Selective Catalytic Reduction (SCR) in the U.S. to lower harmful Nitrogen Oxide (NOx) emissions and meet the EPA’s 2010 heavy-duty engine and vehicle emissions standards. Here we answer how DEF is delivered to a bulk tank and whether the type of connection to the bulk or mini-bulk storage tank matter.
