Detroit Diesel

In this one I will talk about the detroit diesel engines, they are usually used in big semi trucks. The old semi's had them before most of the engines were replaced by the Cummins engine. The biggest engine is the 15.6L, it has 475-600 hp in them.Transmission is the DT12 heavy duty 12 speed automatic to help power it. Trucks like Peterbilt, Kenworth, and Mack trucks all had Detroit Diesels in them, now they all have cummins engines in them because the Cummins engine is for big heavy duty trucks. Also the old gm trucks were running these engines in them for awhile before 2001.