operators_manual

Table Of Contents
Vehicles Average
Speed
Miles Kilometers Hours Months
Typical
Application(s)
25 to 30 mph 12,000 19,300 500 6 Linehaul truck, Fire
truck/Emergency
vehicle, School bus,
Motor coach bus
30 to 40 mph 15,000 24,100 500 6
Higher than 40 mph 20,000 32,200 500 12 Recreational vehicle
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.
Cooling System
Maintenance
Information about concentration and
condition of coolant, including filter.
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
48 Y53-1185-1E1 (04/16/18)
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