Paccar PX-9 Operator's Manual - page 78
MAINTENANCE SPECIFICATIONS
NOTE
•
API: American Petroleum
Institute
•
CES: Cummins Engineering
Standard
•
PACCAR allows, for midrange
applications, the use of
lubricating oils that meet or
exceed Cummins Engineering
Standard (CES) 20078 or CES
20081 with no change in oil
drain interval. But, if a non-low
ash lubricating oil meeting the
CES classification CES 20078
is used, the service interval(s)
for the aftertreatment system
will be reduced.
To determine if the lubricating oil meets
CES 20078 or CES 20081, review the
label on the back of the lubricating oil
bottle for the CES 20078 or CES 20081
reference. If acquiring the lubricating
oil in bulk, contact the supplier for
the lubricating oil specifications and
confirm that the oil meets CES 20078
or CES 20081.
Also located on the lubricating oil
bottle is the API service symbol which
is shown in the illustration. The
upper half of the symbol displays the
appropriate oil categories. The center
section identifies the SAE oil viscosity
grade.
The following table shows how the
CES compares to the American
Petroleum Institute (API) classification.
5-24
Y53-1185-1B1
(12/2014)
5