Keep on top of your heavy duty engine maintenance with FLEET CHARGE SCA Precharged Concentrate Antifreeze and Coolant. This fully formulated, ethylene glycol-based antifreeze and coolant protects against corrosion of system metals and other components in all heavy duty diesel, gasoline, and natural gas engine cooling systems. The low silicate and phosphate-free formula reduces the risk of scale build-up and incorporates nitrate to provide enhanced wet sleeve liner protection against cavitation. Precharged with the necessary advanced technology Supplemental Coolant Additives (SCAs), this antifreeze and coolant requires no additional SCAs during your initial fill, preventing mixing errors and promising optimum chemistry during every top-off. When paired with a high-quality SCA filter system, this heavy duty antifreeze and coolant is designed to last the entire life of the engine, providing reliable ongoing protection against freezing and boil over. This item contains a bittering agent called Denatonium Benzoate.