BlueDef DEF002-4PK Diesel Exhaust Fluid, 2.5 gal 4 Pack

BlueDef DEF002-4PK Diesel Exhaust Fluid, 2.5 gal 4 Pack Essential for the Selective Catalytic Reduction (SCR) process used by medium and heavy-duty engines to meet EPA 2010 regulations Composed of 67.5% purified water and 32.5% ultra-pure automotive grade urea, making it a non-toxic and effective emissions solution Converts harmful NOx emissions into harmless nitrogen gas and water vapor, aiding in cleaner emissions Meets ISO Standards 22241 for purity and is certified by the American Petroleum Institute (API) DEF is stored in a dedicated tank with a fill opening designed for DEF nozzles, preventing cross-contamination with diesel fuel