Engine Coolant Requirements - Sullair 1600H T4F Perkins User Manual

7: Maintenance

7.3 Engine coolant requirements

WARNING
Not following the recommendations of the cool-
ant requirements may induce cooling system
inefficiencies which may result in engine over-
heating. Non-recommended coolant can drasti-
cally reduce the life expectancy of the cooling
circuit and engine.
This machine is factory filled with Mobil Delvac Extended
Life Coolant. It is an ethylene glycol based, OAT inhibited
coolant. This coolant is able to protect the cooling system
from freezing, extend the boiling point, provide corrosion
protection for all metals within the cooling system; espe-
cially for systems with aluminum radiators, provide liner
cavitation protection for heavy duty diesel engines, and
be safe to use with all seals/gasket materials.
This coolant should never be mixed with a different cool-
ant type, color, or brand. If radiator coolant is to be
added, for any reason, be sure that the coolant added is
the same as what is in the cooling system, as well as
what is recommended.
The engine coolant type should follow these recom-
mended specifications:
• Organic acid technology (OAT)
• Premixed coolant pH range of 8.0 to 9.5.
• Contains no silicates, phosphates, borates,
nitrates and amines
• Solution states that it is formulated for use in
heavy duty diesel applications
• Protects all standard metals within the cooling
system (i.e. brass, copper, steel, solder, cast
iron, and aluminum.)
• Meets specification requirements of current
industry standards which include ASTM D
3306.
• Meets or exceeds performance requirements of
current industry standards which include ASTM
D 6210.
62
02250248-733 R03
Subject to EAR, ECCN EAR99 and related export control restrictions.
1600H T4F Perkins User Manual
If you are not sure of the coolant that is installed originally
or want to change to a different type, the cooling system
must be cleaned with a commercial cleaning agent and
then completely flushed and filled with water (preferably
distilled) several times to remove all traces of cleaner and
old coolant. Finally, fill the system with the recommended
coolant using only one brand/type. Cross contamination,
which is caused by adding different types of engine cool-
ants, may result in the depletion or dropout of coolant
additives; thus leaving cooling system surfaces unpro-
tected against corrosion. Corrosion to radiator surfaces
may reduce cooling efficiency and radiator life expec-
tancy. It is extremely important to evacuate/purge all air
within the cooling system before replacing the radiator
cap. Engine coolant must not only maintain proper freeze
protection levels but also maintain proper corrosion inhib-
itor levels. Please contact the coolant manufacture for
specifics on testing methods and suggested coolant
maintenance intervals.
Table 7-1: Coolant service life
Coolant type
Mobil Delvac EXTENDED LIFE
Coolant/Antifreeze
†
Using manufacturer's extender additive to system at 3 years or
6000 hours.
CAUTION
The radiator and engine cooling system must be
drained and flushed periodically. Refer to the
OEM Engine Manual for more information.
Replace the coolant with a solution of 50% eth-
ylene glycol and 50% water or as required for
your geographic location. Do not use a leak
sealing type of antifreeze. Should a 100% water
solution be used, a non-chromate rust inhibitor
must be added. Do not mix coolant types.
Dispose of fluids in accordance with applicable
federal, state and local regulations.
Service life
6 years/12,000 hours
NOTE
†