Spicer Tandem Drive Axles Pro-40 Single Reduction and Single Reduction with Differential Lock - Manual (Page 81)

78 83
Lubrication
General Lubrication Information
The ability of a drive axle to deliver quiet, trouble-free operation
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 current
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 modifiers
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 lubricants
include extended change intervals, improved fuel economy,
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 demonstrated
by extensive laboratory and field testing. For a complete
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 temperature
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-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.