Out of date motor oil

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pistachio
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Out of date motor oil

Post by pistachio »

Hi folks, I just brought a botle of 15-40 oil and got it home and noticed it had an expiration date of 7-10-2010... Is it still OK to use?
I wouldn't of thought oil would go out of date. This looks like a newish bottle, its not dusty like its been hiding at the back of the shelf and it doesn't look like its from the 70's or anything...
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kevtherev
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Re: Out of date motor oil

Post by kevtherev »

is it mineral?
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pistachio
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Re: Out of date motor oil

Post by pistachio »

it is yes
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Oldiebut goodie
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Re: Out of date motor oil

Post by Oldiebut goodie »

It lies underground for millions of years, comes to the surface and then gets an expiry date.
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edoh
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Re: Out of date motor oil

Post by edoh »

'it doesn't look like its from the 70's or anything...'


errrr....

i do....


Owner of a red T25 fixed hi top campervan - colour - spikey red - petrol - water cooled - 1.9 dg engine rhd - 1990 g reg n still going strong!-

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edoh
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Re: Out of date motor oil

Post by edoh »

a quote from someone who might know...

'Oil breakdown is caused by sheer, very high pressures, very high temperatures, acids from the combustion process etc. Sitting in a container on the shelf, the only process that could damage an oil is oxidation. There is next to no oxygen in a full container and anyway normal temperatures are way too low for any problem to occur... I can see no reason why an oil should not have a virtually unlimited shelf life.'

Seems that the only possible problem might be if the seal/canister has been opened -
otherwise should be fine..
Owner of a red T25 fixed hi top campervan - colour - spikey red - petrol - water cooled - 1.9 dg engine rhd - 1990 g reg n still going strong!-

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