I just flew my paramotor 3 times this past week on 11 month & 2 week old premixed E0 gasoline. Would've been a year old on the 26th. Not a hiccup. 2.3 hours combined flight, 6 full-throttle takeoffs for over 2 minutes each time. Amsoil Saber has a built-in stabilizer that apparently works. I mix that stuff heavy on the paramotor at 66:1.
It's not the fuel - it's how customers store it. It CANNOT, whether E0 or E10 pump gas, be stored open to the atmosphere. It's GOT to be in a sealed, air tight container at ALL times. That said, E0 will still outlast E10 in an open jug by a factor of AT LEAST 10:1, unless you live in Phoenix where 20% humidity is considered "tropical". I see TONS of fuel problems, while I myself have very few. I've kept E10 in a 55 gallon drum for a year, and ran it in my mower pumped through a water separating filter. The filter never stopped flowing, so, no water present. Could tell the fuel had degraded by the smell, and it's propensity for epic knocks & backfires on the mower at shutdown, but it got the job done. I even mixed up some premix with that stuff for the whacker, blower, and chainsaw at the time. No issues with those, either.
I did have to clean the carb in the saw after it sat 9 months with that same year old gas in it, though. Was shocked it wasn't worse. Just stale and separated.
View attachment 1008500
