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Does Motor Oil Have A Shelf Life
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This is just a general interest question and may seem stupid to knowledgeable people. However, I was wondering if motor oil has a shelf life.
 
Posts: 39 | Registered: Thu June 17 2004Reply With QuoteReport This Post
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I have heard everything from a few years to indefinite (if properly stored). Noria has an article on it that shows how varied the answers are to this question. I store my oil in the cellar which ranges from 40F to 70F. Want to avoid freezing and very hot temps. I have enough oil stocked to last about three years and am confident it will last well over that.
 
Posts: 358 | Location: Detroit, Michigan | Registered: Thu January 08 2004Reply With QuoteReport This Post
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If the can is never opened, it's probably airtight and protected against oxidation (there's always some oxidation).

When opened and closed the oxidationlevel can be higher.

Furthermore: avoid sunlight and temperature differences like TallPaul already mentioned.
All the new synthetic (long life) engine oils, already have better 'storage' capacities, as they have to stay in your engine for more than two years sometimes...

Hope this helps you out a bit...
 
Posts: 239 | Location: The Netherlands = Holland | Registered: Tue May 25 2004Reply With QuoteReport This Post
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Most manufacturers will give a shelf life to their oils. Mostly due to additive settling. But a lot of "experts" say that an oil in a sealed container will last indefinately. Just make sure the container is agitated before use.
Personally, I believe oil properly stored will have an extended life but there are a lot of factors which will effect the oils properties.
 
Posts: 37 | Location: Australia | Registered: Thu January 08 2004Reply With QuoteReport This Post
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Machinery Lubrication magazine ran a good article on this topic:

Lubricant Storage Life Limits
 
Posts: 18 | Registered: Mon December 01 2003Reply With QuoteReport This Post
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AMSOIL tech service bulletin on the subject http://www.amsoil.com/techserv...dling.pdf?zo=1181889 .
 
Posts: 570 | Location: Sugar Land, TX | Registered: Sat January 16 2010Reply With QuoteReport This Post
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quote:
Originally posted by Tim Vipond:
AMSOIL tech service bulletin on the subject http://www.amsoil.com/techserv...dling.pdf?zo=1181889 .


Interesting read. From the quick searches I've done, it's two years max to a minimum of five years, depending on the mfg.

I think that's under ideal storage conditions.


Anecdotes are useful for stories and tall tales. To make decisions you need data.
 
Posts: 788 | Registered: Sun March 14 2010Reply With QuoteReport This Post
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I'm still using oil dated 2002 for my truck. It's been 'unopened' for years, just shake it some and see if anything is floating in it Wink . Once in a while I'll lay down the 4 GAL container so it will keep mixed Smile



Smile
 
Posts: 3 | Registered: Thu May 20 2004Reply With QuoteReport This Post
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It is a good practice to keep the motor moving parts greasy in order to avoid friction to damage it.
 
Posts: 4 | Location: USA | Registered: Thu May 09 2013Reply With QuoteReport This Post
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