ELC is available in a premixed cooling solution with
distilled water. ELC is a 50 percent by volume of
glycol mixture. The Premixed ELC provides freeze
protection to −36 °C (−33 °F). The Premixed ELC is
recommended for the initial fill of the cooling system.
The Premixed ELC is also recommended for topping
off the cooling system.
Containers of several sizes are available. Consult
your Perkins distributor for the part numbers.
ELC Cooling System Maintenance
Correct additions to the Extended Life
Coolant
NOTICE
Mixing Extended Life Coolant with other products re-
duces the Extended Life Coolant service life. Failure
to follow the recommendations can reduce cooling
system components life unless appropriate corrective
action is performed.
To maintain the correct balance between the
antifreeze and the additives, you must maintain the
recommended concentration of ELC. Lowering the
proportion of antifreeze lowers the proportion of
additive. Lowering the ability of the coolant to protect
the system will form pitting, from cavitation, from
erosion, and from deposits.
NOTICE
Do not use a conventional coolant to top-off a cooling
system that is filled with Extended Life Coolant
(ELC).
Do not use Supplemental Coolant Additive (SCA).
Do not use ELC in systems with SCA filters. When
switching from conventional coolant to ELC in a sys-
tem equipped with SCA filter, remove the filter from
the system to prevent ELC contamination and filter
corrosion and leaks.
ELC Cooling System Cleaning
Note:
If the cooling system is already using ELC,
cleaning agents are not required to be used at the
specified coolant change interval. Cleaning agents
are only required if the system has been
contaminated by the addition of some other type of
coolant or by cooling system damage.
Distilled or deionized water is the only cleaning agent
that is required when ELC is drained from the cooling
system.
Before the cooling system is filled, the heater control
(if equipped) must be set to the HOT position. Refer
to the OEM to set the heater control. After the cooling
system is drained and the cooling system is refilled,
operate the engine until the coolant level reaches the
normal operating temperature and until the coolant
level stabilizes. As needed, add the coolant mixture
to fill the system to the specified level.
Changing to Perkins ELC
To change from heavy-duty antifreeze to the Perkins
ELC, perform the following steps:
NOTICE
Care must be taken to ensure that all fluids are con-
tained during performance of inspection, mainte-
nance, testing, adjusting and the repair of the
product. Be prepared to collect the fluid with suitable
containers before opening any compartment or disas-
sembling any component containing fluids.
Dispose of all fluids according to local regulations
and mandates.
1.
Drain the coolant into a suitable container.
2.
Dispose of the coolant according to local
regulations.
3.
Flush the system with distilled or deionized water
to remove any debris.
4.
Use an appropriate cleaner to clean the system.
Follow the instruction on the label.
5.
Drain the cleaner into a suitable container. Flush
the cooling system with distilled or deionized
water.
6.
Fill the cooling system with distilled or deionized
water and operate the engine until the engine is
warmed to 49° to 66°C (120° to 150°F).
NOTICE
Incorrect or incomplete flushing of the cooling system
can result in damage to copper and other metal
components.
To avoid damage to the cooling system, make sure
that the cooling system is completely flushed with dis-
tilled or deionized water. Continue to flush the system
until all signs of the cleaning agent are gone.
Most commercial cooling system cleaning agents are
corrosive and their use is not recommended by Per-
kins. If these agents have to be used to remove
heavy deposits, then they should not be left in the
system any longer then recommended by the agent
manufacturer and engine temperature should not ex-
ceed 30 deg C. The system must be thoroughly
flushed with distilled or deionized water after use of
these cleaning agents.
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