operators_manual

degradation and could result in damage to
the cooling system and engine
components. Consult your dealer or
the coolant manufacturer’s representative
for recommended extended life coolant test
kits, test strips, and laboratory sample
procedures.
Coolant Extender
Add extended life coolant extender, if
necessary, according to the corrosion
inhibitor concentration required. DO NOT
add coolant extender to nitrite-free coolant.
Checking Coolant Level
Check the coolant level daily. When adding
coolant, avoid mixing different brands and
formulations. If the coolant is mixed with
more than 25% of a different formulation,
engine corrosion damage could occur. If
mixing exceeds 25% of total system
volume, it is recommended to flush and
refill the system completely with one type
of coolant.
Coolant Filter
Your engine is equipped with a coolant
filter designed to capture and remove
harmful deposits from the cooling system
to help prolong system life. It is a "blank
filter" and does not contain chemicals or
time-release additives. Replace it only with
a blank filter at the interval specified in the
Preventative Maintenance Schedule.
Never use filters that contain supplemental
coolant additives (SCAs) in an ELC-filled
system.
CAUTION
Use of non-genuine coolant filters can
cause severe engine damage.
Cooling System Sealing Additives
and Soluble Oils
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1. Do not use soluble oils or sealing
additives.
CAUTION
The use of sealing additives or soluble
oils in the cooling system can cause
damage to the engine. These additives
can plug various areas of the radiator,
EGR system and oil cooler. The plug-
ging of the cooling system can hamper
heat transfer, causing internal engine
damage. Do not use sealing additives
or soluble oils in the cooling system.
The use of sealing additives can:
• Build up in coolant low-flow
areas.
• Plug the radiator and oil cooler.
• Damage the water pump seal.
• Damage heat transfer surfaces.
• Damage seals and hoses.
• Corrode brass and copper.
Failure to comply may result in equip-
ment or property damage.
Inspect Coolant Level
Inspect the vehicle's coolant surge tank for
proper coolant level. Add coolant if the
MAINTENANCE - Cooling System Maintenance
Y53-6047-2HEN (03/18) 225
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