Detroit Diesel DD15 EuroIV Operator's Manual page 94

How to Procedures
Table 6.
Coolant Fill Option
Ethylene Glycol & Water + Corrosion
Inhibitors (Required Coolant)
Ethylene Glycol & Water + Nitrated Organic
Acid Technology Inhibitors
Once installed, this coolant should be maintained according to the recommended
procedures.
Ethylene Glycol and Water Plus Supplemental Coolant Additive
Inhibitor
These products are available as fully formulated, phosphate-free, Extended Service
Interval coolants. They are commercially available from Detroit™ (recommended)
and other manufacturers as either a concentrated antifreeze or as a premixed
antifreeze. The premixed antifreeze is ready for use, while the concentrated coolant
must be mixed with water prior to use.
Detroit Genuine Coolant (P/N: 23512138) is the preferred ethylene glycol coolant.
If other commercial brands of ethylene glycol are used, they must be equivalent to
the Detroit Genuine Coolant.
Fully formulated antifreeze does not require a dosage of Supplemental Coolant
Additive prior to initial use.
Mixing and Using Ethylene Glycol Antifreeze
Use ethylene glycol antifreeze as follows:
• If a concentrated ethylene glycol antifreeze is purchased, mix the antifreeze with
water meeting the required quality standards and fill the cooling system.
• If a pre-diluted, fully-formulated coolant is purchased, fill the cooling system
without dilution.
NOTE: 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
(Inhibited Ethylene Glycol [IEG] only), and possible silicate dropout. Also,
an antifreeze concentration below 33% (33% antifreeze, 67% water) offers
too little freeze and/or corrosion protection and is not recommended.
• Always verify that the freeze point and nitrite concentration of the antifreeze/
water mixture are correct by using Detroit Genuine Fluid Analysis 3–Way
Coolant Test Strip. If chemical analysis is used, elements in the coolant must
fall within the following limits.
94
Copyright © 2014 DETROIT DIESEL CORPORATION DDC-SVC-MAN-0175
Initial Fill Coolant Options
All information subject to change without notice.
Product
Detroit Genuine Coolant
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