The Sea Foam Motor Treatment 16oz SF-16 is a diesel treatment made by the brand Sea Foam in the United States. This product comes in a 16oz volume and includes 4 units. It is safe for use in both gas and diesel engines, making it a versatile and effective fuel additive. With its USA-made quality and specific treatment for motors, Sea Foam Motor Treatment is an essential tool for maintaining and improving the performance of your vehicle.