As far as I can tell we don't have ethenol in our gas in our county.... and even if we do I'm not adding anything other than ring free! Stabil in the winter or if it is going to sit.... for now I'm burning about 100 gallons a month and when offshore runs start next week that will go way up... my theory is keep it flowing and there won't be problems....... and of course checking the racor for water..... and changing filters often.
Richard