Diesel engine exhaust treatment fluid (commonly known as: car urea, car urea, car environmental urea), known as AdBlue® in China and Europe, DEF in the Americas, and ARLA32 in Brazil. AdBlue® is composed of a high content of 32.5% A high-purity transparent liquid composed of pure urea and 67.5% deionized water, with a faint smell of ammonia.

AdBlue®

If splashed, the water evaporates and forms crystals. AdBlue® is used in cars, trucks, buses and heavy off-road diesel engine vehicles equipped with SCR (vehicle selective catalytic reduction exhaust aftertreatment) system. It is a consumable that must be used in SCR technology. The harmful nitrogen oxides emitted by diesel engines are converted into harmless water vapor and nitrogen. The main components of the SCR system include the catalyst, AdBlue® injection device, AdBlue® container and AdBlue® dose controller.

Almost all heavy vehicle manufacturers in Europe, the United States and Asia, including China, also equip vehicles with selective catalytic reduction systems and AdBlue® working fluids to meet new nitrogen oxide emission standards (such as Euro IV and Euro V) Under the combined effect of SCR technology, it can optimize engine performance and fuel consumption, reduce diesel consumption by up to 6%, and significantly reduce costs. The average consumption of AdBlue® is 5% of the general diesel consumption, which is about 1.5 liters per 100 kilometers of highway driving.

AdBlue® can only be used to configure the engine combination of the SCR system because it is neither a fuel nor a fuel additive. AdBlue® implements the standards within ISO22241, DIN70070 and CEFIC regulations to ensure the effective operation of the SCR system. AdBlue® is not harmful to the environment and is classified as the lowest risk transportable liquid.