465 Engine Radiator ADDITIVE ORANGE (for American Vehicles)

465 Engine Radiator Additive (for American Vehicles) is a premium cooling system treatment specially formulated for American vehicles, including gasoline, diesel, and light-duty trucks. It helps protect radiators and cooling system components from corrosion, rust, scale, and harmful deposits while improving heat transfer for consistent engine cooling. Safe for aluminum and mixed-metal cooling systems, it enhances coolant performance, extends cooling system life, and supports reliable operation under everyday and demanding driving conditions. Compatible with most modern coolant formulations, 465 Engine Radiator Additive provides long-lasting protection and dependable performance for American-made vehicles.