Sea Foam SF-16-4PK Motor Treatment Multi-Use, 16 Ounce, Pack of 4, 16. Fluid_Ounces

Sea Foam is a multifunctional fuel additive that can be added to both gasoline and diesel engines, either in fuel or oil, and can also be added to heating oil, although this is not recommended. If used regularly, Sea Foam can act as fuel maintenance, carburetor/injector cleaner and improve fuel stability. For a regular fuel maintenance dose, use 1 oz. per gallon of fuel, which should be enough to prevent carbon build-up and keep the engine clean. For a dirty carb or fuel injectors, use 2 to 4 oz. per gallon. Sea Foam can also be used as an engine cleaner by adding it to the crank case oil, but it is best to change the oil within 100 miles of treatment. In terms of customer reviews, Sea Foam has been well received for years, with customers endorsing the product and recommending it to others. It is particularly effective on boats, snowmobiles, lawnmowers, and older cars which may have been sitting for longer periods. Sea Foam reportedly cleans the engine, smooths out the idle, improved the vehicle's performance, and even doubled engine life.