Ahh! See I've read that. She's talking about never putting Vaseline in the motor. 100% true. We were talking about the gears top and bottom of the machine itself.
Singer motors must always only have Singer Lube. no substitutions. That's what I said in my previous post, but it bears repeating.
Mitch's Mom,... I get my super lube from an "Industrial Supplies" place. Where the GM dealer is also probably getting it. I pay about $4 a tube, and that's Canadian dollars, so I'm guessing it would be about $3 for you.
The added benefit of the Super Lube is that like the TriFlow Grease, it also has PTFE (teflon)