MBE 900 ENGINE 2007 OPERATOR'S GUIDE
How to Select Coolant” section
in this guide.
How to Select Coolant
This section covers selection of
the required coolant for MBE 900
engines.
De
fi
nitions
To help ensure complete
understanding of the information, the
de
fi
nitions of the following terms are
provided:
Antifreeze —
Ethylene glycol
or propylene glycol containing a
corrosion inhibitor package and which
meets an appropriate heavy-duty
speci
fi
cation (i.e., TMC RP-329
“Type A” for ethylene glycol or
TMC RP-330 “Type A” for propylene
glycol).
Coolant —
The
fl
uid mixture
circulating in the engine cooling
system, typically a mixture of 50%
water and 50% antifreeze.
Drop–Out —
Precipitated sludge or
deposit formation on cooling system
components.
Fully Formulated Antifreeze —
Contains all the necessary inhibitors
to protect a diesel engine, and does
not, therefore, require a pre-charge of
SCA before its
fi
rst use.
Initial–Fill Coolant —
The coolant
that is used in a new or rebuilt engine,
or any time the cooling system is
emptied and then re
fi
lled with coolant.
OAT —
Organic Acid Technology.
An inhibitor system based on
organic acid inhibitors, instead of
traditional North American inhibitor
formulations.
SCA —
Supplemental Coolant
Additive. SCAs are used in a
preventive maintenance program to
prevent corrosion, cavitation, and the
formation of deposits.
Approved Coolants
The approved and preferred
coolants for MBE 900 engines
are listed in Table 12.
Once installed, these coolants
should be maintained according
to the procedures discussed under
Maintenance
in this section.
All information subject to change without notice.
(Rev. 04/08)
101
DDC-SVC-MAN-0040 0704
Copyright © 2008 DETROIT DIESEL CORPORATION
Summary of Contents for MBE 900
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