Best answer
Six months
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How long does gasoline last?
Whether you鈥檙e looking to stock up your car with extra fuel, or run a gas-powered generator, gasoline is an essential item for any prepper. But, storing fuel is tricky because gas can go bad and cause problems for your engine. Just how long does gasoline last, you might ask? Gasoline, when properly stored, can last between 3 and 6 months.
How long does gas last in a container?
We can get you a rough range, though. According to Exxon Mobil, gas in a sealed container is estimated to last for approximately six months, give or take a month or two. When left unused, it begins to oxidize, degrade, and lose combustibility.
How long does it take for gas to go bad?
Ethanol-blended gas will start to degrade inside your gas tank within just 1 month. Pure gas will sit well for slightly longer, but not by much, especially in humid locales. A sealed, air-tight plastic container or jerry can is the best place to store gas outside of a dedicated gas storage tank.
How long does camping gas last?
This means a standard 220g aerosol gas canister should last approximately 2 hours, and a standard 450g gas cartridge should last approximately 3.5 hours under optimal conditions. Measuring how long a gas canister or cartridge lasts is not an exact science, however, and many factors will affect how long your camping gas lasts.