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SEBU7833-03
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Heavy-duty diesel engines
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Automotive applications
The anti-corrosion package for ELC is different from
the anti-corrosion package for other coolants. ELC
is an ethylene glycol base coolant. However, ELC
contains organic corrosion inhibitors and antifoam
agents with low amounts of nitrite. Perkins ELC
has been formulated with the correct amount of
these additives in order to provide superior corrosion
protection for all metals in engine cooling systems.
ELC extends the service life of the coolant to 12000
service hours or six years. ELC does not require
a frequent addition of a Supplemental Coolant
Additive (SCA). An Extender is the only additional
maintenance that is needed at 6000 service hours or
one half of the ELC service life.
ELC is available in a 1:1 premixed cooling solution
with distilled water. 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.
ELC Concentrate is also available. ELC Concentrate
can be used to lower the freezing point to −51 °C
(−60 °F) for arctic conditions.
Containers of several sizes are available. Consult
your Perkins dealer or your Perkins distributor for the
part numbers.
ELC Cooling System Maintenance
Correct additions to the Extended Life
Coolant
Use only Perkins products for pre-mixed or concen-
trated coolants.
Use only Perkins Extender with Extended Life
Coolant.
Mixing Extended Life Coolant with other products re-
duces the Extended Life Coolant service life. Failure to
follow the recommendations can reduce cooling sys-
tem components life unless appropriate corrective ac-
tion is performed.
In order to maintain the correct balance between
the antifreeze and the additives, you must maintain
the recommended concentration of Extended Life
Coolant (ELC). Lowering the proportion of antifreeze
lowers the proportion of additive. This will lower the
ability of the coolant to protect the system from pitting,
from cavitation, from erosion, and from deposits.
This document is printed from SPI². Not for Resale.
NOTICE
NOTICE
Do not use a conventional coolant to top-off a cooling
system that is filled with Extended Life Coolant (ELC).
Do not use standard supplemental coolant additive
(SCA). Only use ELC Extender in cooling systems that
are filled with ELC.
Perkins ELC Extender
ELC Extender is added to the cooling system halfway
through the ELC service life. Treat the cooling system
with ELC Extender at 6000 hours or three years. Use
Table 20 in order to determine the correct amount of
ELC Extender that is required.
Containers of several sizes are available. Consult
your Perkins dealer or your Perkins distributor for the
part numbers.
Use the formula in Table 20 to determine the correct
amount of ELC Extender for your cooling system.
Refer to Operation and Maintenance Manual, "Refill
Capacities" in order to determine the capacity of the
cooling system.
Table 20
Formula For Adding ELC Extender To ELC
V × 0.02 = X
V is the total capacity of the cooling system.
X is the amount of ELC Extender that is required.
Table 21 is an example for using the formula that is
in Table 20.
Table 21
Example Of The Equation For Adding ELC
Extender To ELC
Total Volume
Multiplication
of the Cooling
Factor
System (V)
9 L (2.4 US gal)
× 0.02
NOTICE
When using Perkins ELC, do not use standard SCA's
or SCA filters.
47
Maintenance Section
Refill Capacities
Amount of ELC
Extender that is
Required (X)
0.18 L
(0.05 US gal)
or (6 fl oz)
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