As little as you are using it, Travis is right. I would say that the ethanol free premium fuel, premium 2-stroke oil, and a double dose of stabil is more important than what saw you get. I have a Stihl trimmer and it had gas that was 3 years old treated as above with no troubles. Contrary to most folks I leave mine full of fuel all the time. Buy gas in small quantities. I would get a 'farm' grade Stihl, Echo, or Husky.