How long will artists oil paints keep sealed in 37ml tubes?

I have some oils in lead 37ml tubes from 20+ years that are still wet and usable, however I recommend buying new tubes (they sell empty ones at art stores like utrecht) and transferring the paint if you have old soft lead paints.How long will artists oil paints keep sealed in 37ml tubes?
Until the next ice age, and beyond. Actually I don't really know that for sure, but being oil in a sealed light-proof container, I can't imagine by what means it would degrade.How long will artists oil paints keep sealed in 37ml tubes?
Very long as long as you keep them tightly closed and don't store them in extreme temperatures(don't let them freeze or boil). Which means don't store them in your car or garage, keep them in room temperature. Also oil paints should not be reinstituted after they have dried.
longer than U !
i have some oils in large tubes that have lasted me ten years so far.
as long as you keep the tubes very well closed andf keep them in a dry, cool and dark place, could last longer than ther valid before date.

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