BusinessHas Bosch found 'Holy Grail' of clean diesel?To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusiness04/26/2018April 26, 2018German auto parts manufacturer Bosch has claimed a breakthrough on diesel engine technology, saying this will end the "deatbh of the diesel" debate. DW discussed Bosch's clean technology with two experts.https://p.dw.com/p/2whknAdvertisement