Star Tron Enzyme Fuel Treatment is a good choice for stabilizing fuel when laying a boat up for the winter.Based on naturally occurring enzymes, this unique formulation disperses moisture, reduces emissions, increase fuel economy and power, eliminates carbon build-up, cleans injectors, and stabilizes fuel chemistry for at least two years. Eight ounces treats up to 256 gallons of diesel.Key FeaturesWorks with naturally occurring enzymesDisperses moisture, reduces emissions, increase fuel economy and powerEliminates carbon build-up, cleans injectors, and stabilizes fuel chemistryEffective for at least two yearsEight ounces treats up to 256 gallons of dieselChoice of 8oz., 16oz., Gallon, 5-Gallon