Product Description
Diesel Exhaust Fluid (DEF) is a non-toxic solution used in diesel vehicles equipped with Selective Catalytic Reduction (SCR) systems to reduce harmful nitrogen oxide (NOx) emissions. It's a mixture of 32.5% urea and 67.5% deionized water. When injected into the exhaust stream, DEF decomposes into ammonia, which then reacts with NOx in the SCR catalyst, converting it into harmless nitrogen and water vapor.