MBE 900 ENGINE 2007 OPERATOR'S GUIDE How to Select Coolant” section in this guide. Initial–Fill Coolant — The coolant that is used in a new or rebuilt engine, or any time the cooling system is emptied and then refilled with coolant. How to Select Coolant This section covers selection of the required coolant for MBE 900 engines. OAT — Organic Acid Technology. An inhibitor system based on organic acid inhibitors, instead of traditional North American inhibitor formulations. Definitions SCA Supplemental Coolant Additive. SCAs are used in a preventive maintenance program to prevent corrosion, cavitation, and the formation of deposits.
To help ensure complete understanding of the information, the definitions of the following terms are provided: Antifreeze Ethylene glycol or propylene glycol containing a corrosion inhibitor package and which meets an appropriate heavy-duty specification (i.e., TMC RP-329 “Type for ethylene glycol or TMC RP-330 “Type A” for propylene glycol). 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. Coolant The fluid 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 first use. All information subject to change without notice. (Rev. 04/08) 101 DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION