eBay

Blue DEF Diesel Exhaust Fluid is a mixture of high purity synthetic urea and deionized water that is used in Selective Catalytic Reduction (SCR) systems on diesel engines.

When injected into the exhaust stream and passed over a catalyst, Blue DEF helps convert NOx into nitrogen gas and water vapor, two harmless and natural components of the air we breathe
Blue DEF is stable, colorless and odorless, and meets ISO standards 22241 for purity and composition and is an American Petroleum Institute (PI) certified diesel exhaust fluid
These are the highest quality and safety standards in place to ensure optimum SCR performance
Vented nozzle helps glugging