I have used sea foam for about 6 yrs as a gas stabilizer and injector cleaner ,earlier post said it doesn't stabilized I went and looked at can that I have and it reads when added to gas cleans fuel injectors , carb jets do to deposit build up, controls moister in fuels ,conditions diesel fuel , de ice and anti gel ,lubes upper cylinders, stabilize fuels . I add it every second fill and to the last fill for the winter storage ,I store my boat from first week in September till first week of June not saying it's the best product out there but so far it's worked for me