Featherweight grease
 

No. You don't want to use a synthetic grease in the motor. You need to use one with a fairly low melting point. You can buy into the hype and use the grease that's for sale in the little syringes on the featherweight websites or you can get a small syringe and use Vaseline. It's almost the same exact thing as the old style Singer lube, and in fact in the manuals for some Singers and Whites that I know of even recommend using Vaseline(petroleum jelly).

Cari

I'm a convert to Vaseline too. You can buy syringes similar to the ones used by the FW shops in pharmacies.

Here's an interesting blog post on Vaseline in sewing machine motors:

http://archaicarcane.com/a-search-fo...e-replacement/

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This is a reoccuring subject, and I try to keep an eye on the latest info. You can use lithium grease on the gears, but not the motor. Vaseline works well, it's purified mineral oil of the right kind. The gears will run a notch or two smoother on other greases like Triflow or Finish Line Ceramic Grease, these are the clear more transparent (whish to opaque might describe them) and they have teflon. Lithium greases tend to last longer, but there are smoother greases available. Vaseline will never be wrong for the motor, but if the original type singer grease will appear again in small tubes or tubs, it might have some advantages.