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. On the opening day of the Frankfurt International Motor Show (IAA), the US Environmental Protection Agency (EPA) published a Notice of Violation: VW diesel engines with 1.6 liter engines of the EA 189 series had decreased by more than 36%. Expensive lawsuits followed.
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