Yes, I'd probably shake them up and run to 5k miles. Monitor for any consumption or odd noises, etc. No expiration date on oil.
G-oil has an expiration, it is a bio oil, not a regular hydro oil. From a thread in 2012 about this
wow quick response. you wont like it though.
Dear Mr X.,
We do ask for all oil to be used a year from the purchased date just to ensure the product will perform at its best. The oil itself will not begin to degrade in the bottle as well over this time period, the additives however begin to settle at the one year point.
Let us know if you have any questions or concerns!
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P Please consider the environment before printing this email.
That said, under the storage conditions, I would probably use it in an older vehicle or lawn equipment and do an OCI as if it were a dino oil.