Spicer Single Drive Axles Service Manual: S140 Series - Manual (Page 39)

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Lubrication
Lubrication
Lubrication
The ability of a drive axle to deliver quiet, trouble-free opera-
tion over a period of years is largely dependent upon the use
of good-quality gear lubrication in the correct quantity. The
most satisfactory results can be obtained by following the
directions contained in this manual.
The following lubrication instructions represent the most cur-
rent recommendations from the Axle & Brake Division of Dana.
Approved Lubricants
General - Gear lubrications acceptable under military specifi-
cation (MILSPEC) MIL-L-2105D (Lubricating Oils, Gear, Mul-
tipurpose) are approved for use in Spicer Drive Axles.
The MIL-L-2105D specification defines performance and vis-
cosity requirements for multigrade oils. It supersedes both
MIL-L-2105B, MIL-L-2105C and cold weather specification
MIL-L-10324A. This specification applies to both petroleum-
based and synthetic based gear lubricants if they appear on
the most current “Qualified Products List” (QPL-2105) for
MIL-L-2105D.
Note: The use of separate oil additives and/or friction modifi-
ers are not approved in Spicer Drive Axles.
Synthetic Based - Synthetic-based gear lubricants exhibit
superior thermal and oxidation stability, and generally
degrade at a lower rate when compared to petroleum-based
lubricants. The performance characteristics of these lubri-
cants include extended change intervals, improved fuel econ-
omy, better extreme temperature operation, reduced wear and
cleaner component appearance. The family of Spicer gear
lubricants represents a premium quality synthetic lube
which fully meets or exceeds the requirements of
MIL-L-2105D. These products, available in both 75W-90
and 80/W-140, have demonstrated superior performance in
comparison to others qualified under the MILSPEC, as dem-
onstrated by extensive laboratory and field testing. For a com-
plete list of Spicer-approved synthetic lubricants, contact
your local Dana representative. See back cover of this
manual for appropriate phone number.
Makeup Lube - Maximum amount of non-synthetic makeup
lube is 10%.
Recommendations for Viscosity/Ambient
Temperature
The following chart lists the various SAE Grades covered by
MIL-L-2105D and the associated ambient temperature range
from each. Those SAE grades shown with an asterisk (*) are
available in the Spicer family of synthetic gear lubricants.
The lowest ambient temperatures covered by this chart are
-40°F and -40°C. Lubrication recommendations for those
applications which consistently operate below this tempera-
ture range must be obtained through Dana by contacting
your local Dana representative.
Grade Ambient Temperature Range
75W -40°F to -15°F (-40°C to -26°C)
75W-80 -40°F to 80°F (-40°C to 21°C)
75W-90* -40°F to 100°F (-40°C to 38°C)
75W-140 -40°F and above (-40°C and above)
80W-90 -15°F to 100°F (-26°C to 38°C)
80W-140* -15°F and above (-26°C and above)
85W-140 10°F and above (-12°C and above)
* Available in the Spicer family of synthetic gear lubricants.