For the model you requested:

NOTE: An initial 5,000-mile filter change interval is required for all New, ReTran®, and Overhauled transmissions. For more information, refer to the Initial Filter Change Interval Recommendation Chart.

Extended filter change intervals are only valid with the use of Allison Transmission high-capacity filters. For specific Allison Part Numbers, refer to Service Tip #1099.

Local conditions, severity of operation or duty cycle may require more or less frequent fluid change intervals that differ from the published recommended fluid change intervals of Allison Transmission.

Change fluid/filters after recommended mileage, months elapsed, or hours in operation, whichever occurs first.

Transmission protection and fluid change intervals can be optimized by the use of fluid analysis. Filters must be changed at or before recommended intervals.

Fluid exchange (purge) machines are not recommended or recognized due to variation and inconsistencies with ensuring removal of 100% of the used fluid.