I got 3 and my friends have them and between us we have run gallons through them. I milled 4 boards I used over a qt. I keep my no corn fuel rotated to the car after 30 days. The gas can has a paper tag that gives the date it was purchased. It's mixed in another can. All cans go on the expire date. I never go past 45 days. I actually think my kit saws will last and last. If you store it run some motomix to flush the mixed fuel and it will not mess up your carb components. I been using h1r and it's growing on me.