That's part of the reason I like ATF so much; it's even more widely available than sewing machine oil.
I understand where you're coming from though with customers. It's certainly easier to explain that the bottle that says 'Sewing Machine Oil' is what they should buy, rather than explain in depth the virtues of PTFE lubricant.
I expect you'd probably meet with a lot of resistance for suggesting something new and different.
Last edited by Jamesbeat; 06-07-2014 at 07:37 AM.