Paccar PX-7, Operator'S Manual

Page: 48 / 92

• Cummins Inc. bases the oil drain
specifications on duty cycle and oil
contamination. This contamination
occurs in all engines, at varying
rates, regardless of the drain
interval.
• Maintaining the correct oil and filter
change interval is a vital factor in
preserving the integrity of an
engine. Lubricating oil filters
must
be changed when the oil is
changed.
NOTE
If the type/oil capacity of each lubricat-
ing oil pan is not known:
•
Contact a PACCAR Inc. Author-
ized Repair Location
• Determine the capacity of the oil
pan option for the engine being
serviced by using QuickServe
™
Online and the engine serial
number.
• Fill the lubricating oil pan to the
smallest oil pan capacity listed
for the engine being serviced.
Then add 1 US qt (0.95 liters) of
oil at a time until it reaches the
high mark on the dipstick. Re-
cord the number of quarts/liters
added, so the capacity is known
the next time the oil is drained.
• For the latest information for
your engine, please refer to
Cummins QuickServe
™ Online
(quickserve.cummins.com) or
call 1-800-CUMMINS
(1-800-286-6467)
Cooling System
Maintenance
The cooling system in your vehicle was
factory filled with extended life coolant that
meets or exceeds all ASTM D6210 and
Caterpillar EC-1 requirements. PACCAR
recommends only using a 50/50 mixture of
distilled water and ELC when cooling
system service is required. A 50/50 mixture
of ELC and distilled water will provide
freeze protection down to –34°F (–37°C),
which is adequate for most locations in
North America. For extremely cold
operating conditions, a 60/40 mixture
(coolant/water ratio) can be used to
provide freeze protection down to -62°F
(-52°C).
Unless otherwise optioned, factory fill
coolant is an ethylene glycol, nitrited
organic acid technology (NOAT) extended
life coolant (ELC) formulation at a 50:50
coolant-to-distilled water mixture. The
factory fill exceeds ASTM D6210 and
Caterpillar EC-1 requirements. Maintaining
coolant chemistry and freeze protection is
critical to engine and cooling system
component health and longevity.
WARNING
Coolant is toxic. DO NOT get the fluid
in eyes. If contact occurs, flood eyes
with large amounts of water for 15 mi-
nutes. Avoid prolonged or repeated
contact with skin. In case of contact,
immediately wash skin with soap and
water. DO NOT take internally. If swal-
lowed, seek immediate medical atten-
tion. DO NOT induce vomiting. Failure
to comply may result in death, person-
al injury, equipment or property dam-
age.
ENGINE MAINTENANCE - Cooling System Maintenance
46 Y53-1183-1G1 (05/19)
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