Diesel exhaust fluid leak forming crystals at a fuel pump. DEF is about 30% synthetic urine. : r(01)

Diesel exhaust fluid leak forming crystals at a fuel pump. DEF is about 30% synthetic urine. : r(01)

Image gallery: Def Fluid Leak

Crytalized DEF fluid leaking out of the reservoir cap on my beautiful new 2018 Z71. Seems to Diesel exhaust fluid leak forming crystals at a fuel pump. DEF is about 30% synthetic urine. : r Replace Leaking DEF Filter on Freightliner Cascadia Detroit Diesel DD15 - YouTube