fuel economy improvement

Tula Technology’s dDSF may take the already quite clean (especially compared with engines of just a little more than a decade ago) heavy-duty diesel engines to a level that reduces smog-producing emissions while increasing fuel economy and yet not losing any performance. The technology study was announced last month by Cummins, the largest heavy-duty engine manufacturer, and Tula, a technology innovator in Silicon Valley that has become a supplier to OEMs.