Prestone now offers the Command line of Diesel Exhaust Fluid (DEF). Command DEF is a liquid reducing agent that has been developed for use in all diesel engines equipped with a Selective Catalytic Reduction (SCR) system.
SCR is an emissions-control technology that injects a precise amount of DEF into a diesel-powered vehicle’s exhaust stream, which in turn converts any nitrogen oxide present into harmless nitrogen and water vapor that is subsequently released safely into the atmosphere. Some estimate that DEF demand will reach 1.3 billion gallons annually in the United States by 2019.
Prestone’s Command DEF is a colorless, odorless, non-toxic, and non-flammable liquid solution consisting of 67.5% demineralized water and 32.5% high-quality automotive-grade urea. It meets all API and ISO 2224-1 manufacturing specifications. DEF will corrode certain metals, such as aluminum, copper and brass, so it must be used and stored with dispensing equipment and tanks that are made of stainless steel or high-density polypropylene. Prestone Command DEF is available in 1- and 2.5-gallon (3.78- and 9.45-liter) containers, as well as 55-gallon (208.2 liter) drums and 330-gallon (1,249.19 liter) totes.
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