Detroit Diesel Corp (DDC) has received Environmental Protection Agency certification for its 12.7- and 14.0-liter Series 60 on-highway engines. The Series
Detroit Diesel Corp (DDC) has received Environmental Protection Agency certification for its 12.7- and 14.0-liter Series 60 on-highway engines. The Series 60 engine is fully certified to the new 2.5 g/hp-hr NOx + NMHC standard and does not require an aftertreatment device of any kind.
Two different families of the Series 50 urban bus engines also have received emission certification. DDC has also submitted a certification application for a Series 50 urban bus engine equipped with a particulate filter.
The Series 60 engine with exhaust gas recirculation (EGR) requires no changes in maintenance procedures, and recommended oil change intervals remain the same. These engines have a new low-profile gear train and other lighter-weight components to offset the weight increase of EGR components. At 2,585 pounds, the EGR Series 60 engine weighs 65 pounds less than the non-EGR version.
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