Speed Additive - 80 ml State-of-the-art, ash- combination of agents with acceleration-enhancing, cleaning, dispersing, and material protecting properties, Compatible with 2-stroke or 4-stroke engines, carbureted or fuel injected, The engine starts easier and also runs smoother, One shot (80 ml) is sufficient to treat up to 2.5 gallons of fuel & 150 ml treats 4 to 5.3 gallons of fuel, Ensures increased driving enjoyment due to optimized performance, Optimizes fuel for better overall performance, Protects fuel against oxidation and aging, Helps keep fuel system components clean, Improves bottom end throttle response, Increases operational reliability, Increases fuel economy, for use at each refueling