York, Empa study finds retrofitting of VW diesel engines was successful
Green Car Congress
MAY 21, 2020
The VW diesel scandal began on 18 September 2015. Now—almost five years later—a study by the University of York and Empa shows that the retrofitting was successful from an environmental point of view. In Switzerland, retrofitting the EA 189 engine was mandatory. The NOx values for the 1.6-liter
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