Spicer Convertible Tandem Axles - Manual (Page 59)

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Lubrication
Lubrication
General Lubrication Information
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 Dana.
Approved Lubricants
General—Gear lubrications acceptable under military specifi-
cation (MILSPEC) MIL-L-2105D (Lubricating Oils, Gear,
Multipurpose) are approved for use in Spicer Drive Axles. The
MIL-L-2105D specification defines performance and viscosity
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 demononstrated
by extensive laboratory and field testing. For a complete list
of Dana 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%. For additional lubrication information, see
TCMT-0021.
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.
Lube Change Intervals
This product combines the latest manufacturing and part
washing technology. When filled with a Spicer approved
synthetic lubricant at the factory, the initial drain is
not required.
Change the lubricant within the first 5,000 miles of opera-
tion when not using a Spicer approved synthetic lubricant
in either a new axle or after a carrier head replacement.
Base subsequent lubricant changes on a combination of the
following chart and user assessment of the application and
operating environment.
Severe Service Lubrication Change Intervals—Severe ser-
vice applications are those where the vehicle consistently
operates at or near its maximum GCW or GVW ratings, dusty
or wet environments, or consistent operation on grades
greater than 8%. For these applications, the ON/OFF HIGH-
WAY portion of the chart should be used. Typical applications
are construction, logging, mining and refuse removal.
Grade Ambient Temperature Range
75W -40°F to -15°F (-40°C to -26°C)
75W-90* -40°F to 100°F (-40°C to 38°C)
75W-80 -40°F to 80°F (-40°C to 21°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.