Cummins and Allison test natural gas engine/transmission pairing
By Luke Willetts – 13th September 2024
The companies have successfully completed field tests of the new Cummins X15N 15-litre natural gas engine in combination with Allison’s 4000 Series fully automatic transmission. The results showed significant improvements in fuel efficiency, engine braking, and power during shifting, making the combination ideal for heavy-duty operations.