The limits form part of the European type approval regulations – a collection of safety and environmental tests which a new vehicle must pass before it can be sold in the European Union.
The latest Euro standards, Euro 4 (January 2005) and Euro 5 (September 2009) and Euro 6 (September 2014) concentrated on cleaning up emissions from diesel cars, especially particulate matter(PM) and oxides of nitrogen (NOx). Diesel cars needed particulate filters to meet Euro 5 standards.
Euro 6, applies to new type approvals from September 2014 and all new cars from September 2015 and reduces some pollutants by 96% compared to the 1992 limits.
Official fuel consumption figures
Diesel fuel filter blocking
Fuel saving advice
Car choice and the environment
Biodiesel and bioethanol
Euro emissions standards
Lead replacement petrol
20mph zones and CO2
Fuel price reports
Diesel Particulate Filter (DPF)
Low emissions zones in Europe