Cummins 2020 X15 Efficiency Series Engine

The Cummins X15 Efficiency Series Engine delivers up to 3.5% fuel economy improvements.

X15 Efficiency Series
Cumminslo 10108212

Cummins Inc. is expanding its 2020 X15 portfolio with a new X15 Efficiency Series engine for the heavy-duty trucking market. 

  • Delivers up to 5% better fuel economy than the prior X15 Efficiency Series engine
  • Designed for increased uptime and improved driver satisfaction
  • Oil-drain interval (ODI) of up to 75,000 miles (120,700.8 km)
  • ODI of up to 80,000 miles (128,747.52 km) is available to customers using Valvoline Premium Blue 15W-40
  • Customers participating in Cummins OilGuard program have potential to increase to a 100,000-mile (160,934.4 km) ODI
  • Broadest range of ratings means it can serve even more markets
  • Reduces greenhouse gas (GHG) emissions
  • Hardware enhancements enable better air handling and lower friction
  • Delivers up to 3.5% fuel economy improvements to the base engine offering
  • Lower oil consumption is expected with modified liner geometry in the power cylinder
  • Valve adjustments have been made for increased durability
  • Expanded powertrain capabilities can deliver up to an additional 1.5% fuel efficiency increase on top of improvements gained through base engine hardware and feature enhancements
  • EX ratings contain full suite of powertrain features, including prior ADEPT features as well as new capabilities such as predictive gear shifting, predictive braking, on-ramp boost and dynamic power
  • Features in the EX ratings are available exclusively when paired with Endurant transmission from the Eaton Cummins Automated Transmission Technologies joint venture
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