HOW-TO SECTION Water softening to deter formation of mineral deposits. HOT COOLANT Cavitation protection to protect wet sleeve cylinder liners. To avoid scalding from the expulsion of hot coolant, never remove the cooling system pressure cap while the engine is at operating temperature. Wear adequate protective clothing (face shield, rubber gloves, apron, and boots). Remove the cap slowly to relieve pressure. Maintenance Intervals Check the nitrite concentration at the regular intervals listed in Table 21 with a Power Trac 3–Way Test Strip. If topping off is needed, add coolant which is identical to the initial fill coolant.
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. 98 All information subject to change without notice. DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION