CONCENTRATE ANTIFREEZE AND COOLANT: Efficient formula is compatible with all vehicle cooling systems, providing fast-acting and long-lasting protection on all cooling system metals against rust and corrosion NON-ABRASIVE FORMULA: Created with Organic Acid Technology, this ethylene glycol-based coolant formula is compatible with other antifreeze and coolant formulations. This item contains a bittering agent called Denatonium Benzoate. ALL VEHICLE: Versatile and formulated for use in all American, Asian, and European automobiles including cars and low/medium to heavy duty trucks of all makes, models, and years SAFE FOR FILLS AND TOP-OFFS: The amber color will not effect the antifreeze currently in your cooling system LIFETIME PERFORMANCE: Provides cooling system protection for your automobile's entire lifetime with proper maintenance