Briefing

Tests in Spain uncover truck emissions that exceed legal limits

September 8, 2021

T&E's remote emissions testing of Euro VI trucks over the course of three years (2017-2019) shows that 29% of the 587 light and heavy trucks measured are high nitrogen oxide (NOx) emitters

Official tests often fail to account for emissions produced under everyday driving conditions, such as low-speed driving and cold-starts (emissions from when the engine is first turned on). Euro VI testing also fails to ensure emissions durability which leads some models to emit more over time durability which leads some models to emit more over time, nor prevent tampering where emissions reduction systems are switched off by defeat devices.

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