Believe it or not, some Sam's Club stores have aviation oil. The one I used
to go to in North Richland Hills, TX had it by the case.

Find the SKU's or similar that they use; that will help others
get same...

--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433