Significantly reduces NOx content in diesel engine exhaust. Stable, colourless, non-toxic and non-polluting. 20L pack size - Significantly reduces NOx content in diesel engine exhaust - Stable, colourless, non-toxic and non-polluting - 20L pack size The Valvoline Adblue Diesel Exhaust Fluid Ready To Use 20L combines highly purified urea with ultra-pure demineralised water to significantly reduce NOx content in diesel engine exhaust streams in all Selective Catalyst Reduction systems (SCR). Features - Stable, colourless, non-toxic and non-polluting - Use with Benecor specialty pumps - VDA approved AdBlue - Always use compatible containers for DEF including high density polyethylene (HDPE) and stainless steel