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What is EURO 6?

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EURO 6 refers to the sixth and latest iteration of emission standards set by the European Union (EU) for cars. These standards aim to regulate and reduce the levels of harmful pollutants emitted by cars, primarily those with internal combustion engines. EURO 6 standards apply to both petrol (gasoline) and diesel-powered cars.

The EURO 6 standards were introduced in two phases:

EURO 6a: This phase was implemented from September 2014 and focused on regulating emissions from diesel cars. It set stricter limits on various pollutants, including nitrogen oxides (NOx), particulate matter (PM), carbon monoxide (CO), and hydrocarbons (HC). The emission limits for petrol cars remained largely similar to the previous EURO 5 standards.

EURO 6b: This phase was implemented from September 2017 and expanded the emission standards to include petrol cars as well. It tightened the limits for both diesel and petrol cars, particularly focusing on reducing NOx and other pollutant emissions during real-world driving conditions.

The EURO 6 standards impose stricter requirements on car manufacturers, leading to the development and implementation of advanced emission control technologies. These technologies include selective catalytic reduction (SCR), diesel particulate filters (DPF), improved engine management systems, and more efficient exhaust gas recirculation (EGR) systems.

Compared to earlier EURO standards, EURO 6 significantly reduces harmful emissions, particularly NOx and PM, contributing to improved air quality and reduced environmental impact. The implementation of EURO 6 standards has led to a substantial decrease in the allowed emission limits for cars, making them considerably cleaner and more environmentally friendly.

It’s important to note that EURO 6 standards are specific to the European Union and apply to new cars sold within the EU member states. Other regions and countries may have their own emission standards, such as the EPA standards in the United States or China 6 standards in China, which have similar goals of reducing car emissions and improving air quality.

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