A few of you know that I homestead and am off-grid and have been since the early 90s on a large piece of land in the back beyond. For those of you just tuning in, opsec dictates that's all you're getting...
I have always stored gasoline, diesel, and kerosene, keeping 6 months to two years supply on hand in 55 gallon drums, buying a little more when it is cheaper and buying less when it goes up, keeping my rotating stock within those supply parameters.
A few years ago I wanted to experiment to see how long I can store gas under those conditions so I sealed a handful of drums and set them back. They are in an open shed in deep shade stored off the ground.
I opened one at two years, three, and now four. Gas when stored was whatever I bought (winter or summer) and no stabilizer was added. The drums were filled to within a couple of inches and sealed.
Just cracked one from four years ago yesterday and it looked and smelled like the day I put it in. Put 3 gallons in a generator and it fired right up, no issues. Given my experience with years two and three I was unsurprised.
I have two more sealed from then, so the experiment continues.
I also have one that was left with the bung off from two years ago. Every now and then I siphon off a gallon or so and inspect it. It's starting to turn a little darker and smell a little different, but the generator still runs it fine.
Did you do this experiment with ethanol free or the 10% stuff?