
84 SEBU8213-04
Maintenance Section
Lubricant Viscosities and Refill Capacities
Maintenance Section
Lubricant Viscosities and
Refill Capacities
i03727400
Lubricant Viscosities
SMCS Code: 7000; 7581
Selecting the Viscosity
The proper oil viscosity grade is determined by
the minimum outside temperature. This is the
temperature when the machine is started and while
the machine is operated. In order to determine the
proper oil viscosity grade, refer to the “Min” column
in the table. This information reflects the coldest
ambient temperature condition for starting a cold
machine and for operating a cold machine. Refer
to the “Max” column in the table in order to select
the oil viscosity grade for operating the machine at
the highest temperature that is anticipated. Use the
highest oil viscosity that is allowed for the ambient
temperature when you start the machine.
Machines that are operated continuously should
use oils that have the higher oil viscosity in the final
drives and in the differentials. The oils that have the
higher oil viscosity will maintain the highest possible
oil film thickness. Consult your dealer if additional
information is needed.
Lubricant Viscosities for Ambient
Temperatures
Note: When you operate the machine at temperatures
below 20°C (4°F), refer to Special Publication,
SEBU5898, “Cold Weather Recommendations For
All Caterpillar Equipment”. This is available from your
Caterpillar dealer.
Table 10
LUBRICANT VISCOSITIES FOR AMBIENT TEMPERATURES
(1)
°C °FCompartment or System Oil Type and Classification Oil Viscosities
Mi
n
Ma
x
Mi
n
Ma
x
(continued)