The following search returns a list of Certified ValvTect Marine Fuel Locations. These locations have been certified to provide ValvTect Marine Gasoline and/or ValvTect Marine Premium Diesel with BioGuard in accordance with ValvTect's strict quality control guidelines. Marinas have the option to sell recreational grade (non-ethanol) or ethanol (E10) gasolines based upon geographic availability. Dispensers must identify if the gasoline contains ethanol by Federal requirement. For more information on ValvTect Products, or for information on quality control requirements to qualify your Marina, please call 800-728-8258.