SmartAdvantage™ Powertrain. The Smart Way To Get A 3-6% Fuel Economy Advantage. The new SmartAdvantage™ Powertrain takes the power of Cummins ISX15 with SmartTorque2 (ST2) and combines it with the smooth shifting of the Eaton Fuller Advantage 10-Speed Automated Transmission for improved fuel economy. The engine and transmission share critical data, determining the torque required to deliver the power level drivers need. Error-free, guessproof shifting makes every driver in your fleet as efficient as your best driver.

More Miles. Every Gallon. ISX15 for EPA 2010. Cummins ISX15 EPA 2010 delivers superior driving performance while improving industry-leading fuel economy. Plus, it achieves near-zero emissions levels without sacrificing the reliability or durability that you expect from a Cummins engine. Every major component and system is designed and built by Cummins for total quality control, building on a proven engine with fully integrated electronics. An improved, more precise air-handling system has reduced restriction, which helps optimize performance.