A fuel system cleaner is a chemical additive designed to clean and maintain the fuel system of an internal combustion engine. It is typically added to the fuel tank and can help to remove deposits from the fuel injectors, carburetor, and other fuel system components. This can help to improve engine performance, fuel economy, and emissions.
Fuel system cleaners are available in a variety of formulations, each designed for a specific purpose. Some cleaners are designed to remove specific types of deposits, such as carbon or varnish. Others are designed to prevent the formation of deposits in the first place. Some cleaners are also designed to improve fuel economy or reduce emissions.