The Sea Foam SF-16 Motor Treatment is a pack of 4 16 oz. bottles designed for gas and diesel engines. This automotive additive is a fuel system cleaner and diesel fuel additive that helps to improve engine performance and efficiency. The Sea Foam brand is known for its high-quality products, and this treatment is easy to install and adjust for optimal results. Made in the United States, this product is compatible with universal vehicles and comes with an unspecified length warranty. Perfect for maintaining and protecting your vehicle's engine, the Sea Foam SF-16 Motor Treatment is a must-have for any car owner.