As part of the SmartEfficiency initiative, Cummins revealed the 2017 L9 diesel and 2017 B6.7 hybrid engine systems, the ISL G Near Zero (NZ) NOx natural gas engine, the isolated engine coolant loop system for the 2017 L9 and ISL G, and a new SmartSupport service program.
NJ TRANSIT finds bus, trains, railcars breaking down more often
Reliability is measured by mean distance between failures, which is the average mileage that the agency's rail and bus fleets travel before breaking down. The more miles traveled indicates that the fleet is more reliable.