Cummins says X15 Efficiency Series and X15 Performance Series engine owners can extend their oil drain intervals up to 80,000 miles using the free Cummins OilGuard program, which uses engine performance data and oil analysis to safely optimize oil drain intervals.
Jacobs Offers Improved Engine Brake for 2017 X15 Engine
Jacobs Vehicle Systems has announced an optimized engine brake for the 2017 Cummins X15 engine designed to add additional braking power from the engine compared to past models.