Testing Shows X15N Paired with Allison Transmission Produces Fuel Savings September 09, 2024, 12:23:03 PM Testing Shows X15N Paired with Allison Transmission Produces Fuel Savings[html]Sandman, a bulk cement carrier, tested the co*bination of the Cummins X15N natural gas engine and Allison’s fully automatic transmission and reported fuel savings and increased performance over 50,000 miles.[/html]Source: Testing Shows X15N Paired with Allison Transmission Produces Fuel Savings (http://ht**://www.worktruckonline.c**/10225821/testing-shows-x15n-paired-with-allison-transmission-partners-produces-fuel-savin) Quote Selected