TRUCK SERVICE MANUAL
GREASE - Cont.
For operation in areas where the ambient temperature is
consistently below -10 deg F [-I23 deg C] and there is no
Oil separation, %
provision for keeping engines warm 'during shutdowns,
30 Hours @ 212 deg. F.
the lubricating oil should meet the requirements in Table
Due to extreme operating conditions, oil change intervals
ASTM D 217
should be carefully evaluated paying particular attention
to viscosity changes and total base number decrease.
Bomb Test, PSI Drop
ASTM D 942
Oil designed to meet MIL-L-10295-A, which is now void,
and SAE 5W mineral oils should not be used.
Table 3-3: Arctic Oil Recommendations
Dirt Count, Particles/cc
API class CC/SC or
25 Micron +
API class CC/CD
75 Micron +
125 Micron +
10,000 Centistrokes Max.
@ -30 deg. F
5.75 Centistrokes Min.
@ 210 deg. F
*Federal Test Method Standard No. 791a.
At least 10 deg. F [6 deg. C]
Caution: Do not mix brands of grease as damage to
below lowest expected
bearings may result. Excessive lubrication is as
harmful as inadequate lubrication. After lubricating fan
hub, replace both pipe plugs. Use of fittings will allow
1.85% by wt. Maximum
lubricant to be thrown out, due to rotative speed.
Cummins Engine Company, Inc., recommends use of
Cummins Diesel Engines have been developed to take
grease meeting the specifications of MIL-G-3545,
advantage of the high energy content and generally
excluding those of sodium or soda soap thickeners.
lower cost of No. 2 Diesel Fuels. Experience has shown
Contact lubricant supplier for grease meeting these
that a Cummins Diesel Engine will also operate
satisfactorily on No. 1 fuels or other fuels within the
Recommended Fuel Oil Properties:
Dropping point, deg. F
ASTM D 2265
Centistokes 1.4 to 5.8 @ 100
Bearing life, hours at 300 deg. F.
deg. F. (30 to 45 SUS)
40 minimum except in cold
weather or in service with
ASTM D 1478
prolonged idle, a higher
Start at 0 deg. F.
cetane number is desirable.
Run at 0 deg. F.
Not to exceed 1% by weight.
(ASTM D-129 or 1552)
ASTM D 1743
Water and Sediment
Not to exceed 0.1% by
ASTM D 1264
Not to exceed 0.25% by
weight on 10% residue.
D-524 or D-189)