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FS Coolants/Antifreeze provide freeze-up, boil-over, and engine material protection to keep engines and cooling systems running smoothly in all outside temperatures. View our full lubricants product line.
FS Extended Life OAT Coolant/Antifreeze features a patented Organic Acid Technology (OAT) formula that delivers total cooling system protection for 1,000,000 miles of on-road use (8 years or 20,000 hours of offhighway use)* without the use of supplemental coolant additives (SCAs). When required, top off the cooling system with FS Extended Life or FS Extended Life 50/50 Pre-Diluted Coolant/Antifreeze.
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