The Sea Foam SF-16 Motor Treatment is a pack of 4 16 oz. bottles designed for gas and diesel engines. This fuel system cleaner and diesel fuel additive offers unspecified length warranty and features easy installation. Manufactured by Sea Foam in the United States, this product is compatible with universal vehicles and offers adjustable usage for optimal results. Perfect for maintaining and protecting your vehicle's engine, the Sea Foam Motor Treatment ensures a healthy and efficient fuel system.