Spicer Single Drive Axles Service Manual: 34DS, 34RS, 38DS, 38RS, DS340, RS340, DS380, RS380, DS400, RS400, DS3 - Manual (Page 14)

Lubrication
11
Lubrication
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 lubricant in 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 Corporation.
Approved Lubricants
General—Gear lubrications acceptable under military specification (MILSPEC) MIL-L-2105D (Lubricating Oils, Gear, Multipur-
pose) 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 MlL-L-l 0324A. 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 Dana 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 appear-
ance. The family of
Spicer TM 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 perfor-
mance 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 Spicer representative. See back cover of this
manual for appropriate phone number.
Makeup Lube — Maximum amount of non-synthetic makeup lube is 100/o.
Viscosity / Ambient Temperature Recommendations -The following chart lists the varies 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
Roadranger 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 tcontacting your local
Spicer epresen-
tative.
Grade Ambient Temperature
75W - 40 F to -150 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 - 40 F to 100 F (-40 C to -38 C)
80W-140 - 40 F and above(-40 C and above)
85W-140 - 40 F and above (-40 C and above)