When the Detroit Diesel Series 60 engine was introduced in 1987, it was the first heavy-duty diesel engine designed built with fully integrated electronic controls. The dependability and power-to-weight ratio at current reduced emission level ensures excellent fuel economy. DDEC VI electronics control and monitor the engine as well as the Aftertreatment System in order to ensure peak engine efficiency. Optimized Exhaust Gas Recirculation (EGR) system helps in the reduction of nitrogen oxide emissions by over half, making this engine a great choice. Often favored for coaches and buses, the DD60 Series 60 engine has a variety of other applications today.