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Does anybody know if synthetic oil (Mobil 1) has a shelf life, and how long it is? I want to stock up when it goes on sale but don't know if thats a good idea.

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Does anybody know if synthetic oil (Mobil 1) has a shelf life, and how long it is? I want to stock up when it goes on sale but don't know if thats a good idea.

Thanks

Five year maximum shelf-life for (Mobil 1)engine oils. I would play it safe and never use after 4 years... Hope that helps
 

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Why would there be a shelf life for sealed containers? I just shake up the old bottle so that any additives that settled to the bottom are redispersed throughout.

DEWFPO
 

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Thanks for the link. I wish they explained why.

DEWFPO
 

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Millions of years in the ground, but add something to it to make it better and reduce it to 5 years. Progress is weird that way, I guess (and yes, I know the stuff in the can performs better than the stuff at the wellhead)
 

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There are microbial reasons for shelf life... Bacteria break down oils, as well as the addition of moisture over time. Obviously, when an oil is heated in the engine, it kills the bugs and drives off the moisture, but if it sits for a long time, the oil breaks down from the contaminants.
 
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