(*) Selective Catalytic Reduction involves injecting ammoniac (called NH3) from AdBlue into the exhaust catalyst. The chemical reaction caused converts nitrous oxides (NOx) into non-polluting gases (steam and harmless nitrogen).
(**) AdBlue consumption depends on the car's conditions of use, equipment and driving style. The capacity of the AdBlue tank depends on the model; it is generally between 15 and 20 litres. The price of AdBlue varies according to its packaging, but is still attractive for consumers.