What Are The Hazards Of Using Unqualified Automotive Urea Solution?

Non compliant concentration: If the concentration of Automotive Urea Solution/AdBlue®/DEF Fluid/AUS 32 used in vehicles 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 Automotive Urea Solution. In cold working conditions, it will cause the metering pump to freeze. If urea 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.

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

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

Particles and insoluble substances 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 content can form polymers, reducing or rendering the effectiveness of exhaust treatment ineffective, resulting in emissions that do not meet standards, and causing irreversible damage such as SCR catalyst poisoning.