SEW-RETRO GreaseTM has been specially formulated with the proper melting point and lubricating qualities for vintage & antique sewing machines, including the Singer Featherweight 221 & 222K... some attachments need grease sometimes, too! SEW-RETRO GreaseTM is appropriate for any and all sewing machines with all-metal gears. (Do not use this lube with any plastic or nylon gears.)
We are often asked if SEW-RETRO GreaseTM is appropriate for other vintage Singer Sewing Machine motors -- and the answer is yes - so long as your vintage Singer motor has motor ports with a felt wick inside. If you are unsure of this, then if your manual indicates that your vintage Singer motor requires motor lubricant, then SEW-RETRO GreaseTM will be perfectly suited for your machine.
Each SEW-RETRO GreaseTM comes with an instruction sheet for application as well as a port-cleaning tool so you can clean out the motor ports of the old grease. You can also use a Q-tip or hollow cotton swab (with both cotton swab ends cut off) as a replacement port-cleaning tool.