The product shown is an FMS Octane Booster, an automotive fuel additive formulated to enhance engine performance and efficiency. Packaged in a 12-fluid-ounce (354.8 ml) black bottle with a prominent orange and black label, this treatment is designed for direct addition to the vehicle’s gas tank. The labeling explicitly indicates that the formula is engineered for maximum performance, targeting common combustion issues without posing a hazard to sensitive engine components like oxygen sensors or catalytic converters.

This chemical treatment functions primarily by raising the octane rating of gasoline, which helps ensure a more controlled and uniform fuel burn during the combustion cycle. By stabilization of the ignition process, it actively eliminates disruptive engine behaviors such as knocking, pinging, and dieseling (run-on after the ignition is turned off). Furthermore, the optimization of the air-fuel burn aids in improving overall fuel mileage and restoring lost engine power, making it a routine maintenance solution for vehicles experiencing performance drops.