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Old 06-27-2010, 08:35 AM   #29
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Los Lunas , New Mexico
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There may be a kind of a shelf life for propane (depending on how well refined it was), but it's likely to be a lot longer than your or my lifetime. Simple answer: No.


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Old 06-27-2010, 08:57 AM   #30
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It was LPG for a while as my trailer has a brass label stating such. I'm not sure about the butane but I remember seeing it listed before.

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Old 06-27-2010, 10:55 AM   #31
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Butane boils at -0.5 C, while propane boils at -42 C so...

In the far north country you might* get a majority or even pure propane while at the equator you might* get pure butane. Technically isobutane & propane works better than butane & propane mix in the cold so thats whats sold if its available.

I have a couple of propane DC generators made for back up power on cellular phone towers - they have an electrical heater in the fuel line (as well as block heaters) to ensure operation on mountain tops etc. well below the merely laughable -20's temperatures into the life altering -60's and below...

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Old 06-30-2010, 10:53 PM   #32
1972 Travelux Princess 25
Cobourg , Ontario
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It was a million years old when it came out of the ground so I don't think another 20 years will hurt it LOL.
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Old 07-01-2010, 09:46 AM   #33
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South of the river , Minnesota
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LP gas (propane, butane, any mixture of the two) has a shelf life that is longer than the lifespan of the tanks that contain it. It is widely used for standby power in remote locations for this reason.

In contrast, gasoline is not completely stable and at typical summer temperatures will deteriorate even in a sealed container over the course of a year or two. Evaporation of the more volatile fractions, and exposure to air and water, hasten the process.
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Old 07-26-2010, 08:09 PM   #34
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Blandon , Pennsylvania
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Make sure the company that does the recert is registered with DOT. The recert is not valid without an RIN number from DOT. If they don't know what that is then they are probably not registered.
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Old 08-17-2010, 08:42 PM   #35
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moab , Utah
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New 30# tanks

I just priced new steel 30# propane tanks on e-bay and Lowes. The cost comes out to about $60 each delivered. I'm ordering 2 for my 65 Boles and will paint them gold.

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