2100/2200/2500 Series
- Park the vehicle on a level surface and apply the parking brake.
- Run the engine until the transmission fluid reaches the operating temperature of 160 to 200°F (71 to 93°C). Shift the transmission to neutral (N) and shut down the engine.
- Clean the area around the drain plug. Place a drain pan
under the transmission and remove the drain plug. Examine the fluid
while it drains. If only the filter is being changed, do not drain
the fluid.
Caution: To prevent dirt from entering the transmission, use only clean containers and fillers for the transmission fluid. Do not use fillers or containers that have been used for water or antifreeze. Dirt, water, or antifreeze could damage the transmission.
- Using a standard strap-type filter wrench, remove the filter
by turning it counterclockwise. See Fig.2100/2200/2500
Series Transmission External Filter.
Note: A lot of fluid will drain when the filter is removed.
- Remove the magnet from the filter attachment tube or from the top of the filter element.
- Clean any metal debris from the magnet. Then, install the magnet on the filter attachment tube.
- Using transmission fluid, lubricate the gasket on the filter.
- Using your hand, install the filter by turning it clockwise until the filter gasket contacts the converter housing or cooler manifold. Then, turn the filter one more complete turn.
- Install the drain plug and sealing washer. Tighten the plug 22 to 30 lbf·ft (30 to 40 N·m).
- Clean the area around the fill tube and remove the dipstick. Using a clean funnel in the fill tube, add transmission fluid. See Table.Approved Allison Transmission Lubricants for approved transmission lubricants, and see Table.Allison Transmission Lubricant Capacities for lubricant capacities.
- Check and adjust the fluid level using the procedure under
"Checking the Fluid Level".Note: To check the latest Allison approved fluids, go to www.allisontransmission.com/my-allison/customer . Lubricants listed in order of preference. Do not mix types of oil.
Approved Allison Transmission Lubricants
TES-295 Approval Number
Company
Product Brand Name
AN-051005
ExxonMobil Lubricants and Petroleum Specialties Company
Mobil Delvac Synthetic ATF
AN-011001
Castrol Heavy Duty Lubricants
TranSynd
AN-031002
BP
Autran Syn 295
AN-031003
Cognis Corporation
Emgard 2805
AN-031004
International Truck & Engine Company
Fleetrite Synthetic ATF
AN-071006
John Deere & Company
HD SynTran
Allison Transmission Lubricant Capacities
Transmission Model
Fill Capacity:qt (L)*
2100/2200/2500 Series (standard sump)
15 (14)
2100/2200/2500 Series (shallow sump)
13 (12)
3000 Series (4 inch sump)
29 (27)
3000 Series (2 inch sump)
26 (25)
* Quantities listed are approximate. Add the recommended amount of fluid as listed under fill capacity. Do not overfill.
