What are the hazards of unqualified AdBlue®?

the hazards of exceeding standard values

• Non compliant concentration

  If the concentration of Automotive Urea Solution/AdBlue®/DEF Fluid/AUS 32 is insufficient, the consumption will increase, resulting in low conversion rate of nitrogen oxides and causing emission exceeding faults. Ultimately, this will be manifested as a decrease in engine torque, vehicle weakness, and an increase in the freezing point of the solution. In cold working conditions, it will cause the metering pump to freeze. If Automotive Urea Solution/AdBlue®/DEF Fluid/AUS 32 with substandard purity is used for a long time, it will cause the catalyst coating inside the exhaust treatment to fail, which is irreversible and requires replacement of the exhaust treatment unit, resulting in higher maintenance costs.

• Excessive concentration of AdBlue®

  The harmful substance in Automotive Urea Solution/AdBlue®/DEF Fluid/AUS 32, BIURET can form crystals at high temperatures, manifested as crystal blockage in urea pumps, pipelines, nozzles, etc.

• Excessive metal ions

  Excessive metal impurities can quickly cause irreversible damage such as SCR catalyst poisoning and urea pump blockage, resulting in the need to replace the expensive SCR system.

• Excessive insoluble particulate matter

  Particles and insoluble matter can clog the fuel injector of the urea pump, and excessive impurities can clog the filter element of the urea tank and pump, causing the urea metering pump to fail, unable to function properly and triggering a fault code, ultimately resulting in a decrease in engine delay torque and vehicle weakness.

• Excessive formaldehyde

  Excessive formaldehyde content can form polymers, reduce or render ineffective exhaust treatment, result in emissions that do not meet standards, and cause irreversible damage such as SCR catalyst poisoning.