X15

For nearly 20 years, biodiesel has been approved by Cummins for use in its on-highway diesel engines. Cummins’ iconic workhorse, the X15 diesel, is approved to run up to B20 which contains up to 20% biodiesel mostly obtained from soybeans. Fleets and owner-operators using biodiesel in the X15 have long-enjoyed greater lubricity, lower emissions and