Hybrid vehicles are unique, calling for an antifreeze/coolant that goes above and beyond to maintain optimal system performance. Zerex Hybrid Antifreeze/Coolant is a game-changer. Because hybrids have enhanced battery and electrical components, there?s an increased burden placed on the vehicle cooling system. Zerex solves the problem with a custom formula that meets the demands of all hybrids, maximizing battery life and system performance. Our advanced antifreeze/coolant technology optimizes heat transfer through a silicate-free formulation to minimize channel blockage while preventing harmful corrosion and battery component wear. If you want a happy hybrid, don?t compromise on performance or protection. Upgrade to Zerex Hybrid Antifreeze/Coolant, guaranteed for the life of your vehicle ? from the #1 selling OEM-approved coolant brand.