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SERIES 50 OPERATOR'S GUIDE
Detroit Diesel markets a OAT-
inhibited ethylene glycol coolant,
DDC
Power Cool
Plus, which
contains all the required additives.
If a non-DDC OAT antifreeze is
used, it must conform to TMC 338
specification.
Do not add extender to
new OAT antifreeze or coolant.
Water Only + SCA or Water
Only + OAT Inhibitor —
In
warm climates a coolant based
on water with corrosion inhibitors
is approved for use. Water-only
systems need to be treated with
the proper dosage of corrosion
inhibitors. Detroit Diesel-approved
SCAs or OAT corrosion inhibitors
must
be added to the water to provide
required corrosion and cavitation
erosion protection. OAT inhibitors
such as
Power Cool
Plus 6000 are
available for water-only systems.
Inhibitor should be mixed at 7.5%
– 10% by volume with water. For
a list of
Power Cool
products,
refer to section SPECIFICATIONS
in this guide. Traditional SCA
(
Power Cool
3000) can also be
used to protect the engine.
Power
Cool
3000 concentration limits are
listed in Table 23.
NOTE:
Do not use Power Trac 3–Way Test
Strips to test OAT coolant.
Power Cool
3000 SCA inhibitors
should be mixed at 5% by volume
with water. This is 1 quart per 5
gallons of water. These additions
can be made by adding liquid SCAs
available in a variety of sizes. Coolant
filters are also available for different
cooling system capacities. These
filters release the proper amount of
SCA at initial fill.
Power Cool
3000 Coolant Concentration Limits
Boron
125 – 500 PPM
Nitrite
900 – 3200 PPM
Nitrate
0 – 1000 PPM
Silicon
50 – 250 PPM
Phosphorous
0 PPM
pH
8.0 – 11.0
Table 23
Power Cool
3000 Concentration Limits (5%
Power Cool
3000/ 95% Water)
All information subject to change without notice.
(Rev. 01/ 04)
101
6SE550 0401
Copyright © 2004 DETROIT DIESEL CORPORATION