I've used a syringe and needle for the cleanest oiling of delicate areas, especially on the vintage Singers when I'm using more expensive gun oil.
For general oiling of my machines I use a zoom spout containing Lily White. It has a long spout and inside you can pull out a thinner flexible tube. Allows you to put exactly one drop right where you want it.
https://www.amazon.com/Zoom-SPOUT-Sewing-Machine-Oiler-118ml/dp/B00BYCKTW2
For general oiling of my machines I use a zoom spout containing Lily White. It has a long spout and inside you can pull out a thinner flexible tube. Allows you to put exactly one drop right where you want it.
https://www.amazon.com/Zoom-SPOUT-Sewing-Machine-Oiler-118ml/dp/B00BYCKTW2