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Fresh Gas,Metal Cans

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With the importance of running fresh gas in you motorcycle and gas not keeping well in plastic containers, does it make sense to go with a metal can like the 4X4 guys use? I'm growing tired of dumping the excess 91 in my truck (that likes the 85) mid week and paying the $10 to fill it up come Sunday morning. I need a new can and the metal ones don't cost anymore and have mounts available as well. Anyone have an opinion on this?

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Gas will last more than a week. I store my gas in plastic cans, the type that has a vent in the filler nozzle. The cap fits well, so well that the tank expands a lot when it sits in the sun, but the gases dont escape. The gas stays good for a long time. I think the evaporation is what kills the fuel, taking the nice explosive qualities and leaving less volatile stuff in the can.

Robert

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Never thought of that. I guess its the gas in the bike that goes bad as it evaporates. Makes sense.

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While gas will be useable from a plastic can, it will be better preserved in a metal can.

The reason is that plastic is a petroleum product and some of the vapors will actually pass through the plastic. It's what causes the stickers on gas tanks to bubble.

Now, is it enough to notice a difference in performance, and if so, how long does it take? I can't give you qualitative answers to these questions; perhaps someone with more experience in this area can chime in.

In a nutshell: Metal will preserve it longer but I'm not sure if it's enough of a difference to matter for your application.

😢

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I'm told that sunlight degrades gasoline, hence containers that do not let light through are best. I use plastic containers. (I like to see the fuel level) I use the gas quickly enough that it is not really a worry. As long as you don't store it in the direct sunlight and use it within a month, you'll be just fine - you won't even notice the little bit of degradation that occurs during that time.

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There is a certain amount of butane in gasoline, and butane adds a significant amount to the octane rating of gas. Over time the butane will 'boil off' or leach through the plastic.

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Problem with metal cans is they can sweat on the inside with temperature changes. In dry climates it's not a problem but here in Mississippi you can get a significant amount of water in a metal can. It's been my experience that gas stored in plastic cans can last for months and when it does change you can smell the difference.

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With the importance of running fresh gas in you motorcycle and gas not keeping well in plastic containers, does it make sense to go with a metal can like the 4X4 guys use? I'm growing tired of dumping the excess 91 in my truck (that likes the 85) mid week and paying the $10 to fill it up come Sunday morning. I need a new can and the metal ones don't cost anymore and have mounts available as well. Anyone have an opinion on this?

stored in a metal can in a cool place, gas will stay fresh for a long time. keep the can(s) full to cut down on condensation.

jeremiah

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I thought a metal can was best- for about a year until I saw this thread. I keep my fuel as fresh as I can. I leave it only one year in the Honda Generator and that is a metal fuel tank. I agree with most everyone here, tun it over as much as possible. If you keep it up to a year, metal or plastic should be okay. Ideally, use as much fresh gas from a busy gas station as possible.

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