THRIVE Heavy Duty Nitrite-Free Extended Life Antifreeze/Coolant is a premium Organic Acid Technology OAT formula. This virgin ethylene glycol-based fluid isspecially formulated with advanced additive technology, and provides extended servicemaintenance protection in heavy duty applications without the addition of SCAs. It also meets the nitrite-free coolant requirements of many industry-leading OEMs. No addition of SCAs required Provides up to 1,000,000 miles or 20,000 hours of protection* Great for mixed fleets – approved for use in heavy duty and light duty engines. Meets or exceeds ASTM D6210. Ideal for CAT EC-1, Cummins, Detroit Diesel, Navistar,or mixed fleets