freightliner 108SD 2021, Driver Manual

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Detroit Drive Axle Lubricants
*
IMPORTANT: Lubricant used in Detroit rear axles must
meet Mercedes-Benz specification 235.20 (mineral) or
235.8 (synthetic). Mobil Delvac ™ Gear Oil A 80W-90 and
Mobilube ™ HD-A Plus 80W-90 meet specification 235.20.
Mobil Delvac 1 Gear Oil 75W-90 and Mobilube 1 SHC
75W-90 meet specification 235.8. For more product
information, see http://bevo.mercedes-benz.com.
Type Ambient Temperature
SAE
Viscosity
Grade
Mineral Oil –15°F (–26.1°C) and up
†
80W–90
Synthetic Oil –40°F (–40°C) and up
†
75W–90
* Detroit rear axles do not require the use of friction modifiers.
†
There is no upper limit on the ambient temperature, but axle sump tem-
perature must never exceed 250°F (121°C).
Table 1, Detroit Drive Axle Lubricants
Detroit Rear Axle Lubricant Capacity (Hubs Full)
Axle
Oil Capacity:
Quarts (liters)
Forward-Rear, Model 4 14.3 (13.5)
*
Single and Rearmost Tandem,
Model 4
10.6 (10.0) *
Single, Model 2 5.8 (5.5) *
*
These values assume the wheel ends are properly lubricated. Actual oil
capacity might vary slightly depending on gear ratio.
Table 2, Detroit Rear Axle Lubricant Capacity
35–02 Axle Breather Check
The axle housing breather must remain clean. When
the axle lubricant level is checked, check that the
axle breather is open. Check more often under ad-
verse operating conditions. If the breather is plugged,
clean it or replace it as needed.
For the location of the breather on Detroit axles, see
Fig. 1 ; for Meritor axles, see Fig. 2 ; and for Dana
Spicer axles, see Fig. 3 .
Meritor Drive Axle Recommended Lubricant
Lubricant Type Ambient Temperature Viscosity Grade Meritor Specification
Non-Extended Drain
Lubricants
10°F (–12.2°C) and up
*
85W–140 0–76–A
–15°F (–26.1°C) and up
*
80W–140 0–76–B
–15°F (–26.1°C) and up
*
80W–90 0–76–D
–40°F (–40°C) and up
*
75W–90 0–76–E
–40°F (–40°C) to 35°F (2°C) 75W 0–76–J
–40°F (–40°C) and up
*
75W–140 0–76–L
Extended Drain Lubricants
–40°F (–40°C) and up * 75W–90 0–76–N
–40°F (–40°C) and up
*
75W–140 0–76–M
* There is no upper limit on the ambient temperature, but axle sump temperature must never exceed 250° (121°C).
Table 3, Meritor Drive Axle Recommended Lubricant
Rear Axle
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108SD and 114SD Maintenance Manual, November 2016
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