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Old 04-06-2006, 10:49 PM
Surbey Surbey is offline
Join Date: Apr 2005
Posts: 1,227
How long can I keep gas?

Say I purchased 10,000 gallons of gas. How long could I store that underground? It would be in a steel container or divided into 50 gallon drums. Can I just bury that and come and get it when I desire?
Old 04-07-2006, 12:42 AM
AskNott AskNott is offline
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Join Date: Mar 1999
Location: Anderson, IN,USA
Posts: 14,684
Legally, a steel tank won't do. You have to go with fiber glass. (They look like cocoons.) Not only that, it has to done by an EPA certified company. Oy.

Now, on to the fuel itself. Cycle World magazine claimed, in the early 1970s, that racing teams didn't like to keep gasoline for more than 30 days. The reason they gave is that gasoline (petrol) degrades a little bit in a month. Most of us wouldn't notice, but racers want to squeeze every micro-horse out of everything.
"You know what they say about sleeping dogs; you can't trust 'em." --Oliver Faltz
Old 04-07-2006, 08:08 AM
LSLGuy LSLGuy is offline
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Join Date: Sep 2003
Location: Southeast Florida USA
Posts: 21,035
As most boaters know, gasoline has a decent shelf life of around 3 months. Much after that and it begns to gum up the works in unsued motors.

It'll still burn, so duimping some on the ground and lighting it isn't much of a test.

But it won't burn the same in teh high-energy high-speed conditions inside the engine. You can run year-old gas through a clean engine and it'll run, but it won't tun very healthy.

They sell so-called fuel stabilizers to improve the shelf-life of gasoline for boats stored over the winter. It's expensive enough that it'd probably offset any savings from buying fuel in bulk.
Cynicism is Evil. It provides an excuse to expect nothing but the worst from others while simultaneously excusing all the worst in yourself. It's lazy, selfish, and ignorant all tightly wrapped into a toxic ball of nasty.
Old 04-07-2006, 02:24 PM
BrightSmite BrightSmite is offline
Join Date: Aug 2005
Location: Tybee Island
Posts: 86 is what I use, It keeps gas for a long time, maybe several months
Old 04-07-2006, 03:09 PM
Quartz Quartz is offline
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Join Date: Jan 2003
Location: Home of the haggis
Posts: 27,991
So what causes fuel to change and can it be easily prevented?
Old 04-07-2006, 03:21 PM
kelly5078 kelly5078 is offline
Join Date: Jul 2003
Posts: 3,020
Okay, now I'm worried. I always thought it was contact with air that caused gas to degrade, as in a lawn mower engine over the winter.

But I have some gas in 10-gallon gas cans (obviously unvented) from Hurricane Rita, back in September (October?). I thought I'd just put it in my car. Will it have degraded in a way that would mess the car up?
Old 04-07-2006, 07:51 PM
surlyprince surlyprince is offline
Join Date: Jul 2005
Location: SW Washington State
Posts: 62
I know that where i live (pacific NW) the fuel at the stations during the winter months is more volatile than that during the summer. Lower temperature/ vaporization rate or some such nonsense.


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