I just googled turbine oil and it turns out Aircraft Spruce has it by the quart for 12 bucks.

http://www.aircraftspruce.com/catalog/eppages/shell500.php

But that's 45 miles from me. I can stop by the airport across the street (TOA) and buy a quart for probably a couple bucks more.

Doug,
Can you relate some experiences/charateristics with this stuff?

I've used everything from sewing machine oil to WD-40, Rem-Oil, Tri-Flow, Breakfree, and even Mobil 1 motor oil in a pinch. All seemed to work well.