SERIES 60 ENGINE OPERATOR'S GUIDE
OAT Coolant Drain Interval —
A
properly maintained OAT-inhibited
coolant will last 600,000 miles
(960,000 km), four (4) years, or
10,000 operating hours, whichever
comes first. At this time the coolant
should be drained, and the cooling
system should be thoroughly cleaned,
flushed, and filled with new, properly
inhibited OAT coolant.
Chronic Coolant System
Problems
The most commonly seen coolant
system problems result from
maintenance and formulation factors
such as:
Hard water
Dilution of the coolant by the
addition of untreated water
Over dosage or under dosage of
corrosion inhibitors
Improper corrosion inhibitor
(most often phosphated)
Mixing SCAs
Improper testing
Detroit Diesel Cooling System
Maintenance Products
The following products are available
to do maintenance on the cooling
system.
Power Cool SCAs —
Power Cool
SCAs are water-soluble chemical
compounds. These products are
available in coolant filter elements,
liquid packages, and in fully
formulated Power Cool antifreeze.
NOTE:
Power Cool 3000 liquid SCA is more
compatible with hard water than
Power Cool 2000 SCA.
Power Cool Coolant Filter
Elements —
Power Cool coolant
filter elements (spin-on canisters) are
available in various sizes suitable for
cooling systems of varying capacities.
Selection of the proper element size
is vital when pre-charging non-fully
formulated coolant at initial fill and
at maintenance intervals. A fully
formulated antifreeze must not
have SCA added at initial fill. Do
not use SCA-containing filters
with OAT antifreeze or coolant.
The need for maintenance elements
is determined by the results of the
nitrite concentration test performed
at each cooling system interval. Do
not automatically install maintenance
elements at maintenance intervals,
unless the nitrite concentration falls
below 900 parts per million.
Power Cool Cleaners —
Power
Cool Liquid On-Line Cleaner is used
for light deposits. Power Cool Dry
All information subject to change without notice. (Rev. 01/04)
107
6SE484
0401
Copyright © 2004 DETROIT DIESEL CORPORATION