What is Adblue diesel exhaust fluid?

Adblue is an additive used in many newer diesel cars and has lately made news for being in short supply. So what is it and what does it do?

Level Sensors for AdBlue/Diesel Exhaust Fluid

OEM VW Audi BMW Mercedes AdBlue DPF Diesel Exhaust Fluid BlueDEF

Valvoline AdBlue - Valvoline™ Global Australia

Diesel Exhaust Fluid (DEF) LR072258, AdBlue, Half Gallon (1.89

Description, AdBlue® is a solution of urea in water, which is injected into the diesel exhaust system of vehicles with Selective Catalytic Reduction

Quantum 10L AdBlue Diesel Exhaust Fluid

AdBlue - Diesel Exhaust Gas Reduction Fluid

What is diesel exhaust fluid and why is it more important than

Custom ISO 22241 AdBlue® Diesel Exhaust Fluid For SCR System,ISO

Edf Adblue Diesel, Exhaust Fluid, For Automotive at Rs 60/litre in