BlueDEF Diesel Exhaust Fluid is a mixture of high purity synthetic urea and deionized water that is used in Selective Catalytic Reduction (SCR) systems in diesel vehicles. DEF is used to help convert NOx to harmless nitrogen and water.

Diesel Exhaust Fluid (DEF) is one of the key elements of the Selective Catalytic Reduction (SCR) process used by Diesel Engine builders to meet EPA 2010 regulations. BlueDEF is a non-toxic solution of 67.5% purified water and 32.5% ultra-pure automotive-grade urea. BlueDEF is not a fuel or fuel additive. Instead, when injected into the exhaust stream and passed over a catalyst, BlueDEF helps convert NOx into nitrogen gas and water vapor - two harmless and natural components of the air we breathe.

The bundled DU-MOST Walnut Hand Scrub is more effective than soap in removing stubborn grim, grease, oil, carbon, tar, diesel, adhesives, paint, ink, dyes, etc. Wash away easily with or without water. Compact and easy to carry travel-size bottle with a flip-top cap designed for effortless dispensing while on the move. An essential for mechanics and constructors after work clean-up.