Eg & Water Or Pg & Water Plus Sca Inhibitor; Mixing Eg Or Pg Antifreeze And Water - Detroit Diesel 60 Operator's Manual

EG & Water Plus SCA Inhibitor
or P G & Water Plus SCA
Inhibitor — These products are
available as fully formulated,
phosphate-free, extended service
interval (ESI) coolants. They are
commercially available from Detroit
Diesel (recommended) and other
manufacturers as either a concentrated
antifreeze or as a pre-mixed antifreeze.
The pre-mixed antifreeze is ready for
use, while the concentrated coolant
must be mixed with water prior to use.
Detroit Diesel Power Cool engine
coolant (part number 23512138) is
the preferred ethylene glycol (EG)
coolant. If other commercial brands of
ethylene glycol are used, they must be
equivalent to the Power Cool. Detroit
Diesel does not market a propylene
glycol (PG) coolant. If a propylene
glycol coolant is used, it must also
meet the following requirements:
□ Fully formulated ethylene
glycol-based, low silicate
antifreeze or coolant must
meet TMC RP-329 "Type A"
requirements.
□ Fully formulated propylene
glycol-based antifreeze or coolant
must meet TMC RP-330 "Type
A" requirements.
Fully formulated antifreeze does not
require a dosage of SCA prior to
initial use.
All information subject to change without notice.
DDC-SVC-MAN-0039
SERIES 60 ON-HIGHWAY ENGINE OPERATOR'S GUIDE
Copyright © 2009 DETROIT DIESEL CORPORATION
Mixing EG or PG Antifreeze
and Water — If a concentrated
ethylene glycol (EG) or propylene
glycol (PG) antifreeze is purchased,
mix the antifreeze with water meeting
the required quality standards
listed in Table 19 and fill the cooling
system.
If a pre-diluted, fully formulated
coolant is purchased, fill the
cooling system. For best overall
performance, a coolant consisting
of 50% concentration of antifreeze
(50% antifreeze, 50% water) is
recommended.
An antifreeze concentration over
67% (67% antifreeze, 33% water) is
not recommended due to poor heat
transfer, reduced freeze protection
(IEG only), and possible silicate
dropout. An antifreeze concentration
below 33% (33% antifreeze, 67%
water) offers too little freeze and/or
corrosion protection and is not
recommended.
91