# Gasoline, how long does it last?

**URL:** <https://boards.straightdope.com/t/gasoline-how-long-does-it-last/217596>\
**Category:** Factual Questions\
**Created:** [December 7, 2003, 7:45pm UTC](https://boards.straightdope.com/t/gasoline-how-long-does-it-last/217596 "2003-12-07T19:45:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Juliotheman](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@Juliotheman](https://boards.straightdope.com/u/Juliotheman)\
**Post date:** [December 7, 2003, 7:45pm UTC](https://boards.straightdope.com/t/gasoline-how-long-does-it-last/217596/1 "2003-12-07T19:45:56Z")

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I have some gasoline (20:1) oil mix for my (2 stroke) snow blower.

I mixed 2 gallons of it 3 years ago now.

I have been using it the last 2 seasons.

Is it still good to use?

The snowblower seems to like it.

The oil, did have a fuel stabilizer in it.

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**Author:** ![Ringo](https://avatars.discourse-cdn.com/v4/letter/r/779978/32.png) [@Ringo](https://boards.straightdope.com/u/Ringo)\
**Post date:** [December 7, 2003, 8:03pm UTC](https://boards.straightdope.com/t/gasoline-how-long-does-it-last/217596/2 "2003-12-07T20:03:33Z")

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The [El Cerrito Fire Department](http://www.el-cerrito.com/fire/power_safety_issues.html) says the shelf life of gasoline is 6 months.

[Another site](http://nature.gardenweb.com/forums/load/camping/msg081712464196.html) has a discussion of gasoline relating to outboard motors that get only seasonal use.

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**Author:** ![Juliotheman](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@Juliotheman](https://boards.straightdope.com/u/Juliotheman)\
**Post date:** [December 7, 2003, 8:34pm UTC](https://boards.straightdope.com/t/gasoline-how-long-does-it-last/217596/3 "2003-12-07T20:34:21Z")

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I always thought it was 6 months myself.

I used the two year old gas with no issues last year.

I guess I will try the 3 year vintage this season and see how it goes. 🙂
