EXTENDED LIFE RED COOLANT/ANTIFREEZE - FOR TOYOTA, LEXUS & SCION. Delta Extended Life Red Antifreeze/Coolant is a premium ethylene glycol based formula engineered specifically for modern aluminum engines and long service intervals. Designed for vehicles requiring red extended-life coolant, this formula is compatible with many Toyota, Lexus, Scion vehicles that specify red coolant technology. Refer to the Vehicle's Manual for Coolant Spec. This pre-diluted 50/50 formula is ready to use and provides dependable protection against overheating, freezing, corrosion, and scale buildup. It is formulated to meet the cooling system demands of today.