MAINTENANCE, LUBRICATION AND SERVICE
COOLING SYSTEM
Additives
Additives help prevent rust, scale and
mineral deposits from forming. Additives
also protect metals from corrosion,
prevent water pump and cylinder liner
cavitation and contain anti-foaming
agents. Additives are depleted during
normal engine operation and need to be
replaced. For non-extended life coolant
mixture, this means the addition of
Supplemental Coolant Additives (SCA)
at any time the additive goes below the
recommended level. For extended life
coolant mixture, this means an extender
package added halfway through the
coolant lifetime.
Regular Coolant Change Interval
Coolant SCA level must be tested at
least twice per year or whenever coolant
loss occurs. For maximum coolant
system efciency, test the system at
every engine oil change interval, every
1,000 hours or every 6 months
(whichever comes rst).
WARNING
Hot engine. Keep clear of all hot engine
parts and uids. A hot engine and uids
can cause serious burns.
Regular Coolant Filter Change
Intervals
The charged coolant lter contains 8
units of SCA that are released slowly
over time to maintain the recommended
level during operation. Consult engine
service manual for proper SCA level and
change intervals.
CAUTION
Extended life coolant will test as out of
additives (SCA), but SCA should not be
added. Shortened engine life may be the
result of adding SCA.
NOTE
DO NOT add supplement coolant
additives (SCA) to extended life coolant.
Should the extended life coolant system
become contaminated with regular
coolant exceeding 10% of the systems
total capacity or if SCA is added to
extended life coolant, drain the system
and rell with new extended life coolant
or regular coolant.
CAUTION
DO NOT use a lter that contains SCA.
Damage to components can result.
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