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1.1 ,This specification covers the general, physical, chemical, and performance requirements for Supplemental Coolant Additives (SCAs) at a precharged level in the cooling systems of heavy-duty engines.
Note 1: ,After precharging, SCAs are customarily used periodically to service cooling systems at 1/4 ,to 1/3 ,the precharged dosage to compensate for additives lost through dilution and depletion.