“The old ones certainly knew what this could be used for: I saw this in my grandmother’s house, do you know? The reason is in the first comment. 
The Singer oil can is an essential tool for maintaining sewing machines, particularly older models. Its main role is to lubricate the internal components of the machine to ensure its proper functioning over the long term.
By depositing a few drops of oil in the strategic parts of the machine, such as the needles, gears, and other moving parts, it helps reduce friction between the components.
This is crucial because without proper lubrication, the parts risk premature wear, getting stuck, or even breaking, which could lead to malfunctions or breakdowns.
The oil also helps maintain the smooth movement of the sewing machine, ensuring consistent and precise stitching. If the machine is poorly lubricated, the needles can break, the fabric can be damaged, and the machine might become noisy or even seize up completely.
Additionally, good lubrication helps prevent rust from forming on the metal parts, which can extend the machine’s lifespan.
In summary, the Singer oil can is indispensable for maintaining the performance and longevity of the sewing machine. It preserves the internal mechanisms, improves sewing efficiency, and avoids costly repairs.
It’s a small maintenance step, but one of great importance to ensure that the machine continues to function optimally over time.”
