User Manual

HOW-TO SECTION
Detroit Diesel markets a OAT-
inhibited ethylene glycol coolant,
DDC Power Co ol Plus, w hich
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.
WaterOnly+SCAorWater
Only + OAT Inhibitor — In
warm climates a coolant based
on water w ith corrosion inhibitors
is ap proved 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-on ly systems. Inh ibitor
should be mixed at 7.5% – 10% by
volume with water. For a list o f
Power Cool products, refer t o section
SPECIFICATIONS in this guide.
Tr adit ion a l SCA (Power Cool 3000)
can also be used to protect the engine.
Power Cool 3000 concentration limits
are l isted in Table 23.
NOTE:
Do not u se Power Trac 3–Way Test
Strips to test OAT coolant.
Power Cool 3 000 SCA inhibitors
should be mixed at 5 % by volume
with water. T h is 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 fi ll.
Power Cool 3000 Coolant Concentr ation Limits
Boron 125–500PPM
Nitrite 900–3200PPM
Nitrate 0–1000PPM
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)
Water Requirements —
Distilled, reverse osm osis-pu rified,
or de-ionized water which eliminates
the adverse effects of minerals in
102 All information subject to change without notice. (Rev. 01/04)
DDC-SVC-MAN-0058 Copyright © 2004 DETROIT DIESEL CORPORATION