AdBlue is a solution made up of urea and deionized water that is injected into the exhaust system of diesel engines to reduce the amount of nitrogen oxides (NOx) emitted into the atmosphere. It works by converting NOx into harmless nitrogen and water vapor through a process called selective catalytic reduction (SCR).

The invention of AdBlue is credited to a German company called BASF, which developed the substance in the early 2000s. Since then, AdBlue has become increasingly popular in Europe, where strict emissions regulations have been put in place to combat air pollution.

AdBlue is produced by combining urea, which is derived from natural gas or coal, with deionized water. The resulting solution is then purified and packaged for distribution.

In terms of vehicles, AdBlue is primarily used in diesel-powered cars and trucks. In Europe, many car manufacturers have adopted AdBlue technology to comply with emissions regulations, including brands such as Volkswagen, BMW, Mercedes-Benz, and Volvo. In Russia, AdBlue is also used in some diesel vehicles, but it is not as widely adopted as in Europe.

In America, AdBlue is less common, but some diesel trucks and SUVs from brands such as Ford, Chevrolet, and Ram use the technology. In China, AdBlue is becoming more popular as the country seeks to reduce air pollution, and many domestic car manufacturers are incorporating AdBlue systems into their diesel vehicles.

It is worth noting that not all diesel engines require AdBlue. Some older diesel engines may not have the necessary technology to use AdBlue, and some newer engines may use alternative methods to reduce emissions.

In conclusion, AdBlue is a substance used in some diesel-powered cars and trucks to reduce harmful emissions. It was invented by BASF and is produced by combining urea and deionized water. AdBlue is primarily used in Europe, but it is also becoming more popular in other parts of the world as countries seek to reduce air pollution. Many car manufacturers, including Volkswagen, BMW, Mercedes-Benz, and Volvo, have adopted AdBlue technology to comply with emissions regulations.