Approved Allison Transmission Lubricants
Lubricant Type
*
Temperature: °F (°C)
All Allison Transmissions
Castrol TranSynd
™
(synthetic)
Above –22 (–30)
Dexron® III
Above –13 (–25)
*
Lubricants listed in order of preference. Do not mix types of oil.
Table 7, Approved Allison Transmission Lubricants
Allison Transmission Lubricant Capacities
Transmission Model
Fill Capacity:
*
qt (L)
On-Highway Transmissions
1000/2000/2400 Series (standard sump)
15 (14)
1000/2000/2400 Series (shallow sump)
13 (12)
HD/MD Series
HD4060/4560 (standard sump)
36 (34)
†
HD4060/4560 (shallow sump)
26 (25)
†
MD3060/3066/3560 (standard sump)
19 (18)
MD3060/3066/3560 (shallow sump)
10.5 (10)
*
Quantities listed are approximate. Add the recommended amount of fluid
as listed under fill capacity, then perform a "hot check" and add fluid as
needed. Do not overfill.
†
Add 3 quarts (3 liters) if equipped with a PTO.
Table 8, Allison Transmission Lubricant Capacities
1.
Park the vehicle on a level surface and apply the
parking brakes.
2.
Operate the vehicle until the transmission
reaches normal operating temperature: 160 to
200°F (71 to 93°C).
3.
Clean the area around the drain plug and the
transmission fluid pan. Place a drain pan under
the transmission and remove the drain plug. Ex-
amine the fluid as it drains. If only the filter is
being changed, do not drain the fluid.
4.
Remove the 12 mounting bolts (six each) from
the two filter covers.
NOTE: A lot of fluid will drain when the filter
covers are removed.
5.
Remove the filter covers, O-rings, and two
square-cut seals from the transmission. See
6.
Remove the filters from the bottom of the control
module.
7.
Lubricate the new O-rings with transmission fluid,
and install them on the cover assemblies.
8.
Install a new square-cut seal on each cover as-
sembly, and install the fluid filter elements on the
cover assemblies.
1
1
1
1
2
2
3
3
4
4
f260317
08/25/95
1.
Filter Cover
2.
Filter Element
3.
Filter Element O-Ring
4.
Square-Cut Seal
Fig. 6, Allison MD and HD Series Transmission Filter
Locations and Components
Transmission
26
Business Class M2 Maintenance Manual, March 2016
26/8
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