Sea Foam High Mileage HM16 Gasoline Fuel and Oil Treatment is a powerful cleaning and stabilizing solution designed specifically for high mileage vehicles. This pack of 2 16oz bottles contains a combination of fuel injector cleaner, fuel stabilizer, and motor treatment manufactured by Sea Foam in the United States. Ideal for regular use or as a one-time treatment, this product helps to improve fuel efficiency, reduce harmful emissions, and extend the life of your vehicle's engine.