SERVICE PRODUCTS Table 3 Coolant Mixing Ratio Important: If the concentration is too low, there is risk of corrosion/cavitation in the cooling system. NOTICE: Failure to properly maintain coolant with SCA can result in damage to the cooling system and its related components. Conversely, over-concentration of SCA inhibitor can result in poor heat transfer, leading to engine damage. Always maintain concentrations at recommended levels. Do not use traditional SCAs with NOAT coolant. For information about coolant in cold weather operation, see the heading "Winter Coolant Antifreeze Protection" later in this chapter.
Supplemental Coolant Additives for Fully Formulated Coolant The concentrations of some inhibitors will gradually deplete during normal engine operation. SCAs replenish the protection for cooling system components. The coolant must be maintained with the proper concentration of SCA. Detroit Diesel POWER COOL maintenance SCAs are recommended. The proper application of SCA will provide: pH control Restored inhibitor levels to prevent corrosion Water-softening to deter formation of mineral deposits Cavitation protection to protect wet sleeve cylinder liners 60 All information subject to change without notice. (Rev.
04/08) DDC-SVC-MAN-0055 04/08 Copyright © 2008 DETROIT DIESEL CORPORATION Antifreeze Protection Down to °C (°F) Water % by Volume Corrosion - Inhibiting Antifreeze % by Volume –37 (–34) 50 50 minimum –52 (–62) 40 The cooling mix ratio is Max. 60