SERIES 60 ON-HIGHWAY ENGINE OPERATOR'S GUIDE How to Select Coolant organic acid inhibitors, instead of traditional North American inhibitor formulations. This section covers selection of the required coolant for Series 60 engines. SCA Supplemental Coolant Additive. SCAs are used in a preventive maintenance program to prevent corrosion, cavitation, and the formation of deposits. Definitions 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 for ethylene glycol or TMC RP-330 for propylene glycol). 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.
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. OAT — Organic Acid Technology. An inhibitor system based on All information subject to change without notice. 89 DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION