FS Fully Formulated Coolant/Antifreeze is designed to provide superior engine protection for heavy-duty cooling systems.
FS Fully Formulated Coolant/Antifreeze is designed to provide superior engine protection for heavy-duty cooling systems. For years, heavy-duty operators were limited to using low-silicate automotive antifreeze that required the addition of a separate supplemental coolant additive (SCA) at initial fill and top-off. While this was effective, it resulted in mixing errors when the SCA was added. To prevent SCA variability caused by mixing errors and improve convenience, FS Fully Formulated Coolant/ Antifreeze was developed.