Tim Jones wrote:

Other than expensive bike store lubricant, what do people use for oiling
their chain?

Motorcycle chain oil?

Sure, thats good for regular riding. Its penetrating, and easy to apply.
But like any oil, dirt sticks.
So if you ride in dirt, consider a dry lube. It needs to be applied
much more often though.
And its only the inside of the chain that needs to be lubed, so
wipe excess oil off the outside.