Great Maytag find!
You might be able to find turbine oil in some hardware stores. It seems to me I've seen it at my local Ace, although I don't remember the brand or know if they still have it.
This may not be news, but it's worth mentioning again--there are good smaller hardware stores which often have stuff that the larger Home Depots don't even know about, let alone stock. Plus, they often have people who actually can answer a question more complicated than: "What time do you close?"